A=πr2
dA/dt = 2πr dr/dt
Substitute the numbers given in the problem to find your answer.
Eric D.
asked 03/16/22The radius of a circle is increasing at a constant rate of 7 inches per second. At the instant when the radius of the circle is 77 inches, what is the rate of change of the area? Round your answer to three decimal places.
A=πr2
dA/dt = 2πr dr/dt
Substitute the numbers given in the problem to find your answer.
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