Mathematics, 08.09.2021 01:00, jacobgooding830

11. Air is pumped into a spherical balloon such that the surface area of the balloon increases at a rate of 10 cm² per second. Find the rate at which the radius is increasing when the radius is 4 cm. [i. e. find dr/dt when r=4] [Note : surface area, A = 4pi r2]

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11. Air is pumped into a spherical balloon such that the surface area of the balloon increases at a...