Erik K.

asked • 10/17/18

Calculus Math Problem

Assume that the radius r of a sphere is expanding at a rate of

60 cm/min. The volume of a sphere is V = 4/3πr^3 and its surface area is 4πr^2.

Determine the rate of change in surface area at t = 2 min, assuming that r = 10 at t = 0.

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