Arturo O. answered • 08/01/17

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V = (4/3)πr

^{3}dV/dt = 4πr

^{2}dr/dtdr/dt = (dV/dt) / (4πr

^{2})dV/dt = -1 cc/min

r = 5 cm

dr/dt = (-1 cc/min) / [4π(5 cm)

^{2}] = -[1/(100π)] cm/minThe radius decreases at a rate of 1/(100π)] cm/min.

Arturo O.

08/01/17