Deck 14: Mathematics for Nc Programming

Question 1

What is the cosine of 30 degrees to four decimal places?

A) 0.5000
B) 0.5774
C) 0.8660
D) 1.0000

Answer 1

C

Question 2

We can use trigonometry to find an unknown angle if we already know two of the sides.

Answer 2

True

Question 3

____

A) 8
B) 10
C) 12
D) 13

Answer 3

C

Question 4

What is the Law of Cosines?

A)
B)
C)
D)

Question 5

State the order of operations when working with mathematical operations.

Question 6

We need to understand the definitions of four basic trigonometric functions to solve right triangles.

Question 7

____ is a term used to describe when two algebraic expressions are in a state of equality to each other.

A) Law
B) Equation
C) Constant
D) Variable

Question 8

What are the two categories of trigonometry?

Question 9

Discuss unit conversions and proportions.

Question 10

____ are fractions that act like mathematical analogies that describe the relationship between values.

A) Proportions
B) Equations
C) Formulas
D) Scientific notations

Question 11

When is the Law of Sines used?

Question 12

In the Law of Cosines, the variable names are not arbitrary.

Question 13

____ notation is often used to describe very large or very small numbers without having to include all of the leading and trailing zeros.

A) Scientific
B) Algebraic
C) Formulaic
D) Exponential

Question 14

____ triangle trigonometry is only concerned with triangles that do not contain a right angle.

A) Right
B) Algebraic
C) Pythagorean
D) Oblique

Question 15

Any equation that uses one or more ____ is said to be algebraic.

A) exponents
B) formulas
C) variables
D) numbers

Question 16

We notice while milling an unfamiliar material that the tool tends to perform the best when turning at 1200 RPM with a ø 0.750" end mill. We will have this material to machine often, so we decide that it would be a good idea to document the cutting velocity for future reference. What is the cutting velocity?

A) 224 ft/min
B) 236 ft/min
C) 245 ft/min
D) 267 ft/min

Question 17

= ____

A) Opposite x Hypotenuse
B) Opposite / Hypotenuse
C) Opposite + Hypotenuse
D) Hypotenuse - Opposite

Question 18

What are the three basic rules of working with exponents?

Question 19

Variables can be represented by any symbol, including letters, special characters, and even words or abbreviations.

Question 20

An equation that needs significant further work to give a useful answer is often called a formula.