Deck 13: Functions of Several Variables and Partial Differentiation

ملء الشاشة (f)
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سؤال
Use a graphing utility to sketch the graph of <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . Use the viewpoint <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> and <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> (see figure). <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
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لقلب البطاقة.
سؤال
Compute the indicated function value. <strong>Compute the indicated function value.  </strong> A)   B)   C) 1 D) undefined <div style=padding-top: 35px>

A) <strong>Compute the indicated function value.  </strong> A)   B)   C) 1 D) undefined <div style=padding-top: 35px>
B) <strong>Compute the indicated function value.  </strong> A)   B)   C) 1 D) undefined <div style=padding-top: 35px>
C) 1
D) undefined
سؤال
Describe and sketch the domain of the function. <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>

A) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
B) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
C) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
D) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
سؤال
Sketch the indicated traces of Sketch the indicated traces of   .  <div style=padding-top: 35px> . Sketch the indicated traces of   .  <div style=padding-top: 35px>
سؤال
Describe the range of the function. <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Describe and sketch the domain of the function. <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>

A) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
B) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
C) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
D) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
سؤال
Describe the range of the function. <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> , find <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Which of the following is the contour plot of <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> ? <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use a graphing utility to sketch the graph of <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . Use the viewpoint <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> and <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> (see figure). <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Which of the following is the contour plot of <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> ? <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Sketch the indicated traces of Sketch the indicated traces of   .  <div style=padding-top: 35px> . Sketch the indicated traces of   .  <div style=padding-top: 35px>
سؤال
Which of the following is the contour plot of <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> ? <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use a graphing utility to sketch the graph of <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . Use the viewpoint <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> and <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> (see figure). <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Compute the indicated function value. <strong>Compute the indicated function value.  </strong> A) -480 B) -416 C) -484 D) -928 <div style=padding-top: 35px>

A) -480
B) -416
C) -484
D) -928
سؤال
Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph? <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Which of the following is the contour plot of <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> ? <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Describe the range of the function. <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Describe and sketch the domain of the function. <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>

A) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
B) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
C) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
D) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <div style=padding-top: 35px>
سؤال
Describe and sketch the domain of the function. <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <div style=padding-top: 35px>

A) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <div style=padding-top: 35px>
B) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <div style=padding-top: 35px>
C) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <div style=padding-top: 35px> <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <div style=padding-top: 35px>
D) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <div style=padding-top: 35px>
سؤال
Match the surface to its density plot. <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Match the surface to its density plot. <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Match the surface to its contour plot. <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Show that the limit does not exist. Show that the limit does not exist.  <div style=padding-top: 35px>
سؤال
Show that the limit does not exist. Show that the limit does not exist.  <div style=padding-top: 35px>
سؤال
Show that the indicated limit exists. Show that the indicated limit exists.  <div style=padding-top: 35px>
سؤال
Match the surface to its contour plot. <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Determine all points at which the given function is continuous. <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Show that the indicated limit exists. Show that the indicated limit exists.  <div style=padding-top: 35px>
سؤال
Determine all points at which the given function is continuous. <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use polar coordinates to find the indicated limit, if it exists. Note that <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. <div style=padding-top: 35px> is equivalent to <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. <div style=padding-top: 35px> . <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. <div style=padding-top: 35px>

A) 0
B) 1
C) -1
D) The limit is undefined.
سؤال
Match the surface to its contour plot. <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Compute the indicated limit. <strong>Compute the indicated limit.  </strong> A)   B)   C) 1 D) undefined <div style=padding-top: 35px>

A) <strong>Compute the indicated limit.  </strong> A)   B)   C) 1 D) undefined <div style=padding-top: 35px>
B) <strong>Compute the indicated limit.  </strong> A)   B)   C) 1 D) undefined <div style=padding-top: 35px>
C) 1
D) undefined
سؤال
Match the surface to its density plot. <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Show that the indicated limit exists. Show that the indicated limit exists.  <div style=padding-top: 35px>
سؤال
Use polar coordinates to find the indicated limit, if it exists. Note that <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. <div style=padding-top: 35px> is equivalent to <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. <div style=padding-top: 35px> . <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. <div style=padding-top: 35px>

A) 0
B) 1
C) -1
D) The limit is undefined.
سؤال
Show that the limit does not exist. Show that the limit does not exist.  <div style=padding-top: 35px>
سؤال
Ammonia (NH3) is a gas used for manufacturing fertilizers as well as urethane foams and coatings. A particular gas cylinder contains 17.03 grams of ammonia. The pressure P (in atmospheres (atm)), volume V (in liters (L)), and temperature T (in Kelvin (K)) of the sample are related by the equation <strong>Ammonia (NH<sub>3</sub>) is a gas used for manufacturing fertilizers as well as urethane foams and coatings. A particular gas cylinder contains 17.03 grams of ammonia. The pressure P (in atmospheres (atm)), volume V (in liters (L)), and temperature T (in Kelvin (K)) of the sample are related by the equation   . For the function   , compute   .</strong> A) 0.0 atm B) 45.5 atm C) 16.5 atm D) 17.9 atm <div style=padding-top: 35px> . For the function <strong>Ammonia (NH<sub>3</sub>) is a gas used for manufacturing fertilizers as well as urethane foams and coatings. A particular gas cylinder contains 17.03 grams of ammonia. The pressure P (in atmospheres (atm)), volume V (in liters (L)), and temperature T (in Kelvin (K)) of the sample are related by the equation   . For the function   , compute   .</strong> A) 0.0 atm B) 45.5 atm C) 16.5 atm D) 17.9 atm <div style=padding-top: 35px> , compute <strong>Ammonia (NH<sub>3</sub>) is a gas used for manufacturing fertilizers as well as urethane foams and coatings. A particular gas cylinder contains 17.03 grams of ammonia. The pressure P (in atmospheres (atm)), volume V (in liters (L)), and temperature T (in Kelvin (K)) of the sample are related by the equation   . For the function   , compute   .</strong> A) 0.0 atm B) 45.5 atm C) 16.5 atm D) 17.9 atm <div style=padding-top: 35px> .

A) 0.0 atm
B) 45.5 atm
C) 16.5 atm
D) 17.9 atm
سؤال
Compute the indicated limit. <strong>Compute the indicated limit.  </strong> A) undefined B)   C) 0 D)   <div style=padding-top: 35px>

A) undefined
B) <strong>Compute the indicated limit.  </strong> A) undefined B)   C) 0 D)   <div style=padding-top: 35px>
C) 0
D) <strong>Compute the indicated limit.  </strong> A) undefined B)   C) 0 D)   <div style=padding-top: 35px>
سؤال
Determine all points at which the given function is continuous. <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find all first-order partial derivatives. <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find all points at which <strong>Find all points at which   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . <strong>Find all points at which   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find all points at which   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find all points at which   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find all points at which   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find all points at which   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
The pressure P of a gas in a leak-tight container can be approximated by <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> and <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> .

A) <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
B) <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
C) <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
D) <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px> , <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   <div style=padding-top: 35px>
سؤال
Find all first-order partial derivatives. <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find an equation for the tangent plane at the given point. <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D) 0 <div style=padding-top: 35px>

A) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D) 0 <div style=padding-top: 35px>
B) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D) 0 <div style=padding-top: 35px>
C) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D) 0 <div style=padding-top: 35px>
D) 0
سؤال
Show that the function Show that the function   satisfies the diffusion equation   .<div style=padding-top: 35px> satisfies the diffusion equation Show that the function   satisfies the diffusion equation   .<div style=padding-top: 35px> .
سؤال
Find a function with the given properties. <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use the contour plot to estimate <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> and <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> at the origin. <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find all points at which <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0) <div style=padding-top: 35px> . <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0) <div style=padding-top: 35px>

A) <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0) <div style=padding-top: 35px>
B) <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0) <div style=padding-top: 35px>
C) <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0) <div style=padding-top: 35px>
D) (0, 0)
سؤال
Find all first-order partial derivatives. <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A) 0 B) 6w<sup>2</sup>z C) 12wz D) 3w<sup>2</sup> <div style=padding-top: 35px>

A) 0
B) 6w2z
C) 12wz
D) 3w2
سؤال
Use the contour plot to estimate <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> and <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> at the origin. <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Solid bodies, such as mechanical flywheels, experience stress when rotating. The stress s on a flywheel with uniform density d (kg/m3) and radius r (meters) is approximated by <strong>Solid bodies, such as mechanical flywheels, experience stress when rotating. The stress s on a flywheel with uniform density d (kg/m<sup>3</sup>) and radius r (meters) is approximated by   where   is the rotational speed of the flywheel in radians per second. Estimate the percent increase in the stress if the rotational speed of a uniform flywheel is increased from 3917 to 4067 rad/s. [Note: you should be able to answer the question with the given information: no additional information is necessary.]</strong> A) 8% B) 3% C) 0.01% D) 4% <div style=padding-top: 35px> where <strong>Solid bodies, such as mechanical flywheels, experience stress when rotating. The stress s on a flywheel with uniform density d (kg/m<sup>3</sup>) and radius r (meters) is approximated by   where   is the rotational speed of the flywheel in radians per second. Estimate the percent increase in the stress if the rotational speed of a uniform flywheel is increased from 3917 to 4067 rad/s. [Note: you should be able to answer the question with the given information: no additional information is necessary.]</strong> A) 8% B) 3% C) 0.01% D) 4% <div style=padding-top: 35px> is the rotational speed of the flywheel in radians per second. Estimate the percent increase in the stress if the rotational speed of a uniform flywheel is increased from 3917 to 4067 rad/s. [Note: you should be able to answer the question with the given information: no additional information is necessary.]

A) 8%
B) 3%
C) 0.01%
D) 4%
سؤال
Find an equation for the tangent plane at the given point. <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find the indicated partial derivatives. Find the indicated partial derivatives.  <div style=padding-top: 35px>
سؤال
Find all first-order partial derivatives. Find all first-order partial derivatives.  <div style=padding-top: 35px>
سؤال
Find an equation for the tangent plane at the given point. <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use the contour plot to estimate <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> and <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> at the origin. <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use the chain rule to find the indicated derivative. <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> , where <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Two electrical resistors with resistances R1 and R2 (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor RT whose resistance is given by <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to: <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> , <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> , where t is in seconds. Find <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use the given contour plot to estimate the linear approximation of <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> at <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1. <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find the gradient of the given function. <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use implicit differentiation to find <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Compute the linear approximation of the function at the given point. <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> at <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find the total differential of <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Write out the third-order Taylor polynomial for <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)   <div style=padding-top: 35px> about (0,0).

A) <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
State the chain rule for finding <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> for the general composite function involving <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)   <div style=padding-top: 35px> <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)   <div style=padding-top: 35px> ; at u = -4 and v = -2

A) <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Compute the linear approximation of the function at the given point. <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use the given contour plot to estimate the linear approximation of <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> at <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use the chain rule twice to find Use the chain rule twice to find   for the general composite function involving    <div style=padding-top: 35px> for the general composite function involving Use the chain rule twice to find   for the general composite function involving    <div style=padding-top: 35px> Use the chain rule twice to find   for the general composite function involving    <div style=padding-top: 35px>
سؤال
Use implicit differentiation to find Use implicit differentiation to find   and   Assume that the equation defines z as a differentiable function near each    <div style=padding-top: 35px> and Use implicit differentiation to find   and   Assume that the equation defines z as a differentiable function near each    <div style=padding-top: 35px> Assume that the equation defines z as a differentiable function near each Use implicit differentiation to find   and   Assume that the equation defines z as a differentiable function near each    <div style=padding-top: 35px> Use implicit differentiation to find   and   Assume that the equation defines z as a differentiable function near each    <div style=padding-top: 35px>
سؤال
The number n of gas particles in a leak-tight container is approximately described by the equation  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to   <div style=padding-top: 35px>  , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9 ± \pm 0.01 K, P = 0.68 ± \pm 0.02 atm, and V = 1.731 ± \pm 0.005 L. Use a linear approximation to estimate the range of the computed value of n.

A) 0 to  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to   <div style=padding-top: 35px>
B)  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to   <div style=padding-top: 35px>  to  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to   <div style=padding-top: 35px>
C)  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to   <div style=padding-top: 35px>  to  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to   <div style=padding-top: 35px>
D)  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to   <div style=padding-top: 35px>  to  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to   <div style=padding-top: 35px>
سؤال
Find the total differential of <strong>Find the total differential of   .</strong> A)   B)   C)   D)   <div style=padding-top: 35px> .

A) <strong>Find the total differential of   .</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find the total differential of   .</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find the total differential of   .</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find the total differential of   .</strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use the chain rule to find the indicated derivative. <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> , where <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Use implicit differentiation to find <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Find the total differential of <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px> . <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>

A) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
B) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
C) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
D) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   <div style=padding-top: 35px>
سؤال
Suppose the production of a firm is modeled by <strong>Suppose the production of a firm is modeled by   where k measures capital (in millions of dollars) and l measures the labor force (in thousands of workers). Suppose that   and   the labor force is increasing at the rate of 40 and capital is growing at a rate of $900,000 per year. Determine the rate of change of production.</strong> A) Production is increasing at a rate of 71.67 units per year. B) Production is increasing at a rate of 7.64 units per year. C) Production is increasing at a rate of 12.38 units per year. D) Production is increasing at a rate of 76.41 units per year. <div style=padding-top: 35px> where k measures capital (in millions of dollars) and l measures the labor force (in thousands of workers). Suppose that <strong>Suppose the production of a firm is modeled by   where k measures capital (in millions of dollars) and l measures the labor force (in thousands of workers). Suppose that   and   the labor force is increasing at the rate of 40 and capital is growing at a rate of $900,000 per year. Determine the rate of change of production.</strong> A) Production is increasing at a rate of 71.67 units per year. B) Production is increasing at a rate of 7.64 units per year. C) Production is increasing at a rate of 12.38 units per year. D) Production is increasing at a rate of 76.41 units per year. <div style=padding-top: 35px> and <strong>Suppose the production of a firm is modeled by   where k measures capital (in millions of dollars) and l measures the labor force (in thousands of workers). Suppose that   and   the labor force is increasing at the rate of 40 and capital is growing at a rate of $900,000 per year. Determine the rate of change of production.</strong> A) Production is increasing at a rate of 71.67 units per year. B) Production is increasing at a rate of 7.64 units per year. C) Production is increasing at a rate of 12.38 units per year. D) Production is increasing at a rate of 76.41 units per year. <div style=padding-top: 35px> the labor force is increasing at the rate of 40 and capital is growing at a rate of $900,000 per year. Determine the rate of change of production.

A) Production is increasing at a rate of 71.67 units per year.
B) Production is increasing at a rate of 7.64 units per year.
C) Production is increasing at a rate of 12.38 units per year.
D) Production is increasing at a rate of 76.41 units per year.
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Deck 13: Functions of Several Variables and Partial Differentiation
1
Use a graphing utility to sketch the graph of <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   . Use the viewpoint <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   and <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   (see figure). <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)

A) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
B) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
C) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
D) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
B
2
Compute the indicated function value. <strong>Compute the indicated function value.  </strong> A)   B)   C) 1 D) undefined

A) <strong>Compute the indicated function value.  </strong> A)   B)   C) 1 D) undefined
B) <strong>Compute the indicated function value.  </strong> A)   B)   C) 1 D) undefined
C) 1
D) undefined
C
3
Describe and sketch the domain of the function. <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)

A) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
B) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
C) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
D) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
B
4
Sketch the indicated traces of Sketch the indicated traces of   .  . Sketch the indicated traces of   .
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5
Describe the range of the function. <strong>Describe the range of the function.  </strong> A)   B)   C)   D)

A) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
B) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
C) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
D) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
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6
Describe and sketch the domain of the function. <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)

A) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
B) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
C) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
D) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
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7
Describe the range of the function. <strong>Describe the range of the function.  </strong> A)   B)   C)   D)

A) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
B) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
C) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
D) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
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8
Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)   , find <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)   . <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)

A) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)
B) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)
C) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)
D) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. For the function   , find   .  </strong> A)   B)   C)   D)
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9
Which of the following is the contour plot of <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   ? <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)

A) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
B) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
C) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
D) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
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10
Use a graphing utility to sketch the graph of <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   . Use the viewpoint <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   and <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   (see figure). <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)

A) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
B) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
C) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
D) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
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11
Which of the following is the contour plot of <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   ? <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)

A) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
B) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
C) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
D) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
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12
Sketch the indicated traces of Sketch the indicated traces of   .  . Sketch the indicated traces of   .
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13
Which of the following is the contour plot of <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   ? <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)

A) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
B) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
C) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
D) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
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14
Use a graphing utility to sketch the graph of <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   . Use the viewpoint <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   and <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   (see figure). <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)   <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)

A) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
B) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
C) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
D) <strong>Use a graphing utility to sketch the graph of   . Use the viewpoint   and   (see figure).    </strong> A)   B)   C)   D)
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15
Compute the indicated function value. <strong>Compute the indicated function value.  </strong> A) -480 B) -416 C) -484 D) -928

A) -480
B) -416
C) -484
D) -928
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16
Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph? <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)

A) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)
B) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)
C) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)
D) <strong>Wind chill is a combination of temperature and wind speed that expresses how cold the air feels. The larger the wind speed, the more rapidly heat is lost to the air and thus the colder it feels. The table shows the wind chill for selected temperatures and wind speeds. At   and a wind speed of 10 mph, how much change in wind chill can be expected if the wind speed increases by 10 mph?  </strong> A)   B)   C)   D)
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17
Which of the following is the contour plot of <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)   ? <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)

A) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
B) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
C) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
D) <strong>Which of the following is the contour plot of   ?  </strong> A)   B)   C)   D)
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18
Describe the range of the function. <strong>Describe the range of the function.  </strong> A)   B)   C)   D)

A) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
B) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
C) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
D) <strong>Describe the range of the function.  </strong> A)   B)   C)   D)
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19
Describe and sketch the domain of the function. <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)

A) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
B) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
C) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
D) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)     <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
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20
Describe and sketch the domain of the function. <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)

A) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
B) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
C) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)   <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
D) <strong>Describe and sketch the domain of the function.  </strong> A)     B)     C)     D)
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21
Match the surface to its density plot. <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)

A) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
B) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
C) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
D) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
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22
Match the surface to its density plot. <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)

A) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
B) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
C) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
D) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
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23
Match the surface to its contour plot. <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)

A) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
B) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
C) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
D) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
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24
Show that the limit does not exist. Show that the limit does not exist.
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25
Show that the limit does not exist. Show that the limit does not exist.
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26
Show that the indicated limit exists. Show that the indicated limit exists.
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27
Match the surface to its contour plot. <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)

A) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
B) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
C) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
D) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
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28
Determine all points at which the given function is continuous. <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)

A) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
B) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
C) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
D) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
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29
Show that the indicated limit exists. Show that the indicated limit exists.
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30
Determine all points at which the given function is continuous. <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)

A) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
B) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
C) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
D) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
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31
Use polar coordinates to find the indicated limit, if it exists. Note that <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. is equivalent to <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. . <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined.

A) 0
B) 1
C) -1
D) The limit is undefined.
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32
Match the surface to its contour plot. <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)

A) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
B) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
C) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
D) <strong>Match the surface to its contour plot.  </strong> A)   B)   C)   D)
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33
Compute the indicated limit. <strong>Compute the indicated limit.  </strong> A)   B)   C) 1 D) undefined

A) <strong>Compute the indicated limit.  </strong> A)   B)   C) 1 D) undefined
B) <strong>Compute the indicated limit.  </strong> A)   B)   C) 1 D) undefined
C) 1
D) undefined
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34
Match the surface to its density plot. <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)

A) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
B) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
C) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
D) <strong>Match the surface to its density plot.  </strong> A)   B)   C)   D)
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35
Show that the indicated limit exists. Show that the indicated limit exists.
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36
Use polar coordinates to find the indicated limit, if it exists. Note that <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. is equivalent to <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined. . <strong>Use polar coordinates to find the indicated limit, if it exists. Note that   is equivalent to   .  </strong> A) 0 B) 1 C) -1 D) The limit is undefined.

A) 0
B) 1
C) -1
D) The limit is undefined.
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37
Show that the limit does not exist. Show that the limit does not exist.
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38
Ammonia (NH3) is a gas used for manufacturing fertilizers as well as urethane foams and coatings. A particular gas cylinder contains 17.03 grams of ammonia. The pressure P (in atmospheres (atm)), volume V (in liters (L)), and temperature T (in Kelvin (K)) of the sample are related by the equation <strong>Ammonia (NH<sub>3</sub>) is a gas used for manufacturing fertilizers as well as urethane foams and coatings. A particular gas cylinder contains 17.03 grams of ammonia. The pressure P (in atmospheres (atm)), volume V (in liters (L)), and temperature T (in Kelvin (K)) of the sample are related by the equation   . For the function   , compute   .</strong> A) 0.0 atm B) 45.5 atm C) 16.5 atm D) 17.9 atm . For the function <strong>Ammonia (NH<sub>3</sub>) is a gas used for manufacturing fertilizers as well as urethane foams and coatings. A particular gas cylinder contains 17.03 grams of ammonia. The pressure P (in atmospheres (atm)), volume V (in liters (L)), and temperature T (in Kelvin (K)) of the sample are related by the equation   . For the function   , compute   .</strong> A) 0.0 atm B) 45.5 atm C) 16.5 atm D) 17.9 atm , compute <strong>Ammonia (NH<sub>3</sub>) is a gas used for manufacturing fertilizers as well as urethane foams and coatings. A particular gas cylinder contains 17.03 grams of ammonia. The pressure P (in atmospheres (atm)), volume V (in liters (L)), and temperature T (in Kelvin (K)) of the sample are related by the equation   . For the function   , compute   .</strong> A) 0.0 atm B) 45.5 atm C) 16.5 atm D) 17.9 atm .

A) 0.0 atm
B) 45.5 atm
C) 16.5 atm
D) 17.9 atm
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39
Compute the indicated limit. <strong>Compute the indicated limit.  </strong> A) undefined B)   C) 0 D)

A) undefined
B) <strong>Compute the indicated limit.  </strong> A) undefined B)   C) 0 D)
C) 0
D) <strong>Compute the indicated limit.  </strong> A) undefined B)   C) 0 D)
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40
Determine all points at which the given function is continuous. <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)

A) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
B) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
C) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
D) <strong>Determine all points at which the given function is continuous.  </strong> A)   B)   C)   D)
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41
Find all first-order partial derivatives. <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)

A) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
B) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
C) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
D) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
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42
Find all points at which <strong>Find all points at which   .  </strong> A)   B)   C)   D)   . <strong>Find all points at which   .  </strong> A)   B)   C)   D)

A) <strong>Find all points at which   .  </strong> A)   B)   C)   D)
B) <strong>Find all points at which   .  </strong> A)   B)   C)   D)
C) <strong>Find all points at which   .  </strong> A)   B)   C)   D)
D) <strong>Find all points at which   .  </strong> A)   B)   C)   D)
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43
The pressure P of a gas in a leak-tight container can be approximated by <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   and <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   .

A) <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,
B) <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,
C) <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,
D) <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,   , <strong>The pressure P of a gas in a leak-tight container can be approximated by   , where V is the volume of the container, T is its absolute (Kelvin) temperature, and k is a constant. Find   and   .</strong> A)   ,   B)   ,   C)   ,   D)   ,
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44
Find all first-order partial derivatives. <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)

A) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
B) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
C) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
D) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
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45
Find an equation for the tangent plane at the given point. <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)

A) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
B) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
C) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
D) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
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46
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D) 0

A) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D) 0
B) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D) 0
C) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D) 0
D) 0
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47
Show that the function Show that the function   satisfies the diffusion equation   . satisfies the diffusion equation Show that the function   satisfies the diffusion equation   . .
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48
Find a function with the given properties. <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)

A) <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)
B) <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)
C) <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)
D) <strong>Find a function with the given properties.  </strong> A)   B)   C)   D)
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49
Use the contour plot to estimate <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   and <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   at the origin. <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)

A) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
B) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
C) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
D) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
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50
Find all points at which <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0) . <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0)

A) <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0)
B) <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0)
C) <strong>Find all points at which   .  </strong> A)   B)   C)   D) (0, 0)
D) (0, 0)
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51
Find all first-order partial derivatives. <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)

A) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
B) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
C) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
D) <strong>Find all first-order partial derivatives.  </strong> A)   B)   C)   D)
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52
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A) 0 B) 6w<sup>2</sup>z C) 12wz D) 3w<sup>2</sup>

A) 0
B) 6w2z
C) 12wz
D) 3w2
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53
Use the contour plot to estimate <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   and <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   at the origin. <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)

A) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
B) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
C) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
D) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
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54
Solid bodies, such as mechanical flywheels, experience stress when rotating. The stress s on a flywheel with uniform density d (kg/m3) and radius r (meters) is approximated by <strong>Solid bodies, such as mechanical flywheels, experience stress when rotating. The stress s on a flywheel with uniform density d (kg/m<sup>3</sup>) and radius r (meters) is approximated by   where   is the rotational speed of the flywheel in radians per second. Estimate the percent increase in the stress if the rotational speed of a uniform flywheel is increased from 3917 to 4067 rad/s. [Note: you should be able to answer the question with the given information: no additional information is necessary.]</strong> A) 8% B) 3% C) 0.01% D) 4% where <strong>Solid bodies, such as mechanical flywheels, experience stress when rotating. The stress s on a flywheel with uniform density d (kg/m<sup>3</sup>) and radius r (meters) is approximated by   where   is the rotational speed of the flywheel in radians per second. Estimate the percent increase in the stress if the rotational speed of a uniform flywheel is increased from 3917 to 4067 rad/s. [Note: you should be able to answer the question with the given information: no additional information is necessary.]</strong> A) 8% B) 3% C) 0.01% D) 4% is the rotational speed of the flywheel in radians per second. Estimate the percent increase in the stress if the rotational speed of a uniform flywheel is increased from 3917 to 4067 rad/s. [Note: you should be able to answer the question with the given information: no additional information is necessary.]

A) 8%
B) 3%
C) 0.01%
D) 4%
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55
Find an equation for the tangent plane at the given point. <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)

A) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
B) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
C) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
D) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
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56
Find the indicated partial derivatives. Find the indicated partial derivatives.
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57
Find all first-order partial derivatives. Find all first-order partial derivatives.
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58
Find an equation for the tangent plane at the given point. <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)

A) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
B) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
C) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
D) <strong>Find an equation for the tangent plane at the given point.  </strong> A)   B)   C)   D)
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59
Use the contour plot to estimate <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   and <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)   at the origin. <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)

A) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
B) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
C) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
D) <strong>Use the contour plot to estimate   and   at the origin.  </strong> A)   B)   C)   D)
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60
Find the indicated partial derivative. <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)

A) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)
B) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)
C) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)
D) <strong>Find the indicated partial derivative.  </strong> A)   B)   C)   D)
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61
Use the chain rule to find the indicated derivative. <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   , where <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)

A) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)
B) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)
C) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)
D) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)
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62
Two electrical resistors with resistances R1 and R2 (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor RT whose resistance is given by <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to: <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   , <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   , where t is in seconds. Find <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)   . <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)

A) <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)
B) <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)
C) <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)
D) <strong>Two electrical resistors with resistances R<sub>1</sub> and R<sub>2</sub> (in ohms) are wired into an electronics circuit as shown in the figure below. The pair of resistors behaves as a single resistor R<sub>T</sub> whose resistance is given by   . Once the circuit is energized, the temperatures of the resistors increase, causing the resistances to increase according to:   ,   , where t is in seconds. Find   .  </strong> A)   B)   C)   D)
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Use the given contour plot to estimate the linear approximation of <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)   at <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1. <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)

A) <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)
B) <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)
C) <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)
D) <strong>Use the given contour plot to estimate the linear approximation of   at   . Assume each contour line represents a 1 unit increase from left to right with the left-most contour line corresponding to a value of 1.  </strong> A)   B)   C)   D)
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64
Find the gradient of the given function. <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)

A) <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)
B) <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)
C) <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)
D) <strong>Find the gradient of the given function.  </strong> A)   B)   C)   D)
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65
Use implicit differentiation to find <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   . <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)

A) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)
B) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)
C) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)
D) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)
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66
Compute the linear approximation of the function at the given point. <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)   at <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)

A) <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)
B) <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)
C) <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)
D) <strong>Compute the linear approximation of the function at the given point.   at  </strong> A)   B)   C)   D)
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67
Find the total differential of <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   . <strong>Find the total differential of   .  </strong> A)   B)   C)   D)

A) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)
B) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)
C) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)
D) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)
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68
Write out the third-order Taylor polynomial for <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)   about (0,0).

A) <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)
B) <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)
C) <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)
D) <strong>Write out the third-order Taylor polynomial for   about (0,0).</strong> A)   B)   C)   D)
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69
State the chain rule for finding <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)   for the general composite function involving <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)   <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)

A) <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)
B) <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)
C) <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)
D) <strong>State the chain rule for finding   for the general composite function involving    </strong> A)   B)   C)   D)
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70
Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)   ; at u = -4 and v = -2

A) <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)
B) <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)
C) <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)
D) <strong>Find an equation of the tangent plane to the parametric surface at the indicated point. S is defined by   ; at u = -4 and v = -2</strong> A)   B)   C)   D)
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71
Compute the linear approximation of the function at the given point. <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)

A) <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)
B) <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)
C) <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)
D) <strong>Compute the linear approximation of the function at the given point.  </strong> A)   B)   C)   D)
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72
Use the given contour plot to estimate the linear approximation of <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)   at <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)   . <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)

A) <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)
B) <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)
C) <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)
D) <strong>Use the given contour plot to estimate the linear approximation of   at   .  </strong> A)   B)   C)   D)
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Use the chain rule twice to find Use the chain rule twice to find   for the general composite function involving    for the general composite function involving Use the chain rule twice to find   for the general composite function involving    Use the chain rule twice to find   for the general composite function involving
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74
Use implicit differentiation to find Use implicit differentiation to find   and   Assume that the equation defines z as a differentiable function near each    and Use implicit differentiation to find   and   Assume that the equation defines z as a differentiable function near each    Assume that the equation defines z as a differentiable function near each Use implicit differentiation to find   and   Assume that the equation defines z as a differentiable function near each    Use implicit differentiation to find   and   Assume that the equation defines z as a differentiable function near each
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75
The number n of gas particles in a leak-tight container is approximately described by the equation  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to    , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9 ± \pm 0.01 K, P = 0.68 ± \pm 0.02 atm, and V = 1.731 ± \pm 0.005 L. Use a linear approximation to estimate the range of the computed value of n.

A) 0 to  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to
B)  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to    to  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to
C)  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to    to  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to
D)  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to    to  <strong>The number n of gas particles in a leak-tight container is approximately described by the equation   , where T is the temperature of the gas in kelvins (K), P is the pressure of the gas in atmospheres (atm), and V is the volume of the container in liters (L). For a particular sample, an experimenter finds T = 292.9   \pm   0.01 K, P = 0.68   \pm   0.02 atm, and V = 1.731   \pm   0.005 L. Use a linear approximation to estimate the range of the computed value of n.</strong> A) 0 to   B)   to   C)   to   D)   to
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Find the total differential of <strong>Find the total differential of   .</strong> A)   B)   C)   D)   .

A) <strong>Find the total differential of   .</strong> A)   B)   C)   D)
B) <strong>Find the total differential of   .</strong> A)   B)   C)   D)
C) <strong>Find the total differential of   .</strong> A)   B)   C)   D)
D) <strong>Find the total differential of   .</strong> A)   B)   C)   D)
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Use the chain rule to find the indicated derivative. <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)   , where <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)

A) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)
B) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)
C) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)
D) <strong>Use the chain rule to find the indicated derivative.   , where  </strong> A)   B)   C)   D)
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78
Use implicit differentiation to find <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)   . <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)

A) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)
B) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)
C) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)
D) <strong>Use implicit differentiation to find   .  </strong> A)   B)   C)   D)
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Find the total differential of <strong>Find the total differential of   .  </strong> A)   B)   C)   D)   . <strong>Find the total differential of   .  </strong> A)   B)   C)   D)

A) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)
B) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)
C) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)
D) <strong>Find the total differential of   .  </strong> A)   B)   C)   D)
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80
Suppose the production of a firm is modeled by <strong>Suppose the production of a firm is modeled by   where k measures capital (in millions of dollars) and l measures the labor force (in thousands of workers). Suppose that   and   the labor force is increasing at the rate of 40 and capital is growing at a rate of $900,000 per year. Determine the rate of change of production.</strong> A) Production is increasing at a rate of 71.67 units per year. B) Production is increasing at a rate of 7.64 units per year. C) Production is increasing at a rate of 12.38 units per year. D) Production is increasing at a rate of 76.41 units per year. where k measures capital (in millions of dollars) and l measures the labor force (in thousands of workers). Suppose that <strong>Suppose the production of a firm is modeled by   where k measures capital (in millions of dollars) and l measures the labor force (in thousands of workers). Suppose that   and   the labor force is increasing at the rate of 40 and capital is growing at a rate of $900,000 per year. Determine the rate of change of production.</strong> A) Production is increasing at a rate of 71.67 units per year. B) Production is increasing at a rate of 7.64 units per year. C) Production is increasing at a rate of 12.38 units per year. D) Production is increasing at a rate of 76.41 units per year. and <strong>Suppose the production of a firm is modeled by   where k measures capital (in millions of dollars) and l measures the labor force (in thousands of workers). Suppose that   and   the labor force is increasing at the rate of 40 and capital is growing at a rate of $900,000 per year. Determine the rate of change of production.</strong> A) Production is increasing at a rate of 71.67 units per year. B) Production is increasing at a rate of 7.64 units per year. C) Production is increasing at a rate of 12.38 units per year. D) Production is increasing at a rate of 76.41 units per year. the labor force is increasing at the rate of 40 and capital is growing at a rate of $900,000 per year. Determine the rate of change of production.

A) Production is increasing at a rate of 71.67 units per year.
B) Production is increasing at a rate of 7.64 units per year.
C) Production is increasing at a rate of 12.38 units per year.
D) Production is increasing at a rate of 76.41 units per year.
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