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Air is being blown into a spherical balloon at the rate of 75 cm3/s. Determine the rate at which the radius of the balloon is increasing when the radius is 28 cm.
8 years ago

Answers

Steve
v = 4/3 pi r^3
dv/dt = 4 pi r^2 dr/dt

now just plug in your numbers and find dr/dt
8 years ago

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