Wind speed varies in the first twenty meters above the ground. For a particular day, let f(x)=1.7 ln x+6.4 compute the wind speed x meters above the ground. What is the wind speed 9 meters above the ground? Round your result to the nearest hundredth.
A) -2.66 meters per second
B) 10.14 meters per second
C) 9.56 meters per second
D) 8.60 meters per second

Question

Wind speed varies in the first twenty meters above the ground. For a particular day, let f(x)=1.7 ln x+6.4  compute the wind speed  x  meters above the ground. What is the wind speed 9 meters above the ground? Round your result to the nearest hundredth.
A)  -2.66  meters per second
B)  10.14  meters per second
C)  9.56  meters per second
D)  8.60  meters per second

Quizplus · Accepted Answer

To find the wind speed 9 meters above the ground, substitute x=9 into the given function: f(9) = 1.7 ln(9) + 6.4. Calculating this gives a value of approximately 10.14 meters per second.

Wind Speed Varies in the First Twenty Meters Above the Ground