Multiple Choice
The two radii of the frustum of a right circular cone are increasing at a rate of 4 centimeters per minute, and the height is increasing at a rate of 12 centimeters per minute (see figure) . Find the rate at which the volume is changing when the two radii are 15 centimeters and 30 centimeters, and the height is 10 centimeters.
A)
B)
C)
D)
E)
Correct Answer:

Verified
Correct Answer:
Verified
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