The surface area of a sphere is given by A = 4 space pi r squared, where r is the sphere's radius. If a sphere's surface area grows at a rate of 16 cm2 per second, at what rate is the radius of the sphere increasing (in cm per second) at the instant the sphere has a radius of 4 cm?

6.5

step-by-step explanation:

you said it was in the question

~courtney

my answer got deleted but it's a

step-by-step explanation:

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)

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5,-10,20,-40,30,-60

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