Essay
Write the word or phrase that best completes each statement or answers the question.
-The surface area S (in square inches)of a cylindrical pipe with length 12 inches is given by πr, where r is the radius of the piston (in inches). If the radius is increasing with time t (in minutes)according to the formula
, find the surface area S of the pipe as a function of the time t.
Correct Answer:

Verified
Correct Answer:
Verified
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