Find the length of the curve.The curve r = 7
, 0 ? ? ? 
A. 2?
B. 
?
C. 7(? + ln(? + 
))
D. 
(? + 2)
Answer: B
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Provide an appropriate response.
= 83 Is this a linear equation?
A. Yes B. No
Find the volume of the sphere or the cylinder. Use ? = 3.14 when needed. Round to the nearest thousandth if necessary.
A. 4069.44 ft3 B. 4073.04 ft3 C. 24,416.64 ft3 D. 24,438.24 ft3
Solve the problem.The polynomial 
gives the predicted sales volume of a company, in millions of items, where x is the number of years from now. Determine the predicted sales 8 years from now. Round your answer to two decimals, if necessary.
A. 16.93 million B. 15.5 million C. 27.67 million D. 34.37 million
An object weighing W pounds is suspended from the ceiling by a steel spring (see figure). The weight is pulled downward (positive direction) from its equilibrium position and released. The resulting motion of the weight is described by the function
?
?
where y is the distance (in feet) and t is the time (in seconds).
Use a graphing utility to select the graph of the function.
?
?
?
A. ?
B. ?
C. ?
D. ?
E. ?