Find the requested value of the variable.y varies directly as z2. If y = 27 when z = 3, find y when z = 8.
A. y = 192
B. y = 24
C. y = 9
D. y = 72
Answer: A
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Solve the problem.If a rock falls from a height of 80 meters above the ground, the height H (in meters) after t seconds is approximately 
where 
What is the height of the rock after 4 seconds? Round your answer to the nearest tenth.
A. 1.6 meters B. -304.16 meters C. 1201.6 meters D. 60.4 meters
The total worldwide box-office receipts for a long-running movie are approximated by the function 
, where T(x) is measured in millions of dollars and x is the number of years since the movie's release. How fast are the total receipts changing 1 yr, 3 yr, and 5 yr after its release?
What will be an ideal response?
Convert the angle in degrees to radians. Express the answer as multiple of ?.135°
A. 
B. 
C. 
D. 
A ring has an inner circumference of 7 centimeters. If the ring's inner circumference can vary between 6 centimeters and 7.5 centimeters, how can the radius vary? Round your answer to five decimal places. ?
A. Radius can vary between 3.64756 centimeters and 5.69932 centimeters. B. Radius can vary between 1.38198 centimeters and 1.54510 centimeters. C. Radius can vary between 0.95493 centimeter and 1.19366 centimeters. D. Radius can vary between 1.90986 centimeters and 2.38732 centimeters. E. Radius can vary between 0.11408 centimeter and 1.61408 centimeters.