Air is being pumped into a spherical balloon so that its volume increases at a rate...
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Air is being pumped into a spherical balloon so that its volume increases at a rate of 70cm/s. How fast is the surface area of the balloon increasing when its radius is 13cm ? Recall that a ball of radius 7 has volume V and surface area S = 4r. 4 3 Air is being pumped into a spherical balloon so that its volume increases at a rate of 70cm/s. How fast is the surface area of the balloon increasing when its radius is 13cm ? Recall that a ball of radius 7 has volume V and surface area S = 4r. 4 3
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