Approximate the circumference of the circle using 3.14 as an approximation for ?.
A. 65.94 ft
B. 346.185 ft
C. 13.335 ft
D. 32.970 ft
Answer: A
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Evaluate the integral which is given in cylindrical or spherical coordinates.
A. 
B. 
C. 
?
D. 
?
Write the best-fit linear model for the data.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Find a linear function that approximates a student's score on Test B as a function of his or her score on Test A. 
A. y = 0.930 - 19.4x B. y = 19.4 + 0.930x C. y = -0.930 + 19.4x D. y = -19.4 - 0.930x
The function f is one-to-one. Find its inverse.f(x) = x3 + 1
A. f-1(x) = 
B. f-1(x) = 
+ 1
C. f-1(x) = 
- 1
D. f-1(x) = 
Solve the problem.The data below represent the average monthly cost of natural gas in an Oregon home. 
Above is the graph of 45.05 sin x superimposed over a scatter diagram of the data. Find the sinusoidal function of the form 
which best fits the data.
A. y = 45.05 sin 
+ 21.20
B. y = 45.05 sin 
+ 21.20
C. y = 45.05 sin 
+ 66.25
D. y = 45.05 sin 
+ 66.25