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Mathematics, 21.02.2020 08:42 cadeduncan71

Assume that the radius r of a sphere is expanding at a rate of 30 cm/min. The volume of a sphere is V = 4 3 πr3 and its surface area is 4πr2. Determine the rate of change in surface area at t = 2 min, assuming that r = 18 at t = 0. cm2/min

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Assume that the radius r of a sphere is expanding at a rate of 30 cm/min. The volume of a sphere is...
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