Question: If a sphere's surface area is increasing at a rate of 15 ft.2/s, at what rate is the sphere's radius increasing when the radius

If a sphere's surface area is increasing at a rate of 15 ft.2/s, at what rate is the sphere's radius increasing when the radius

If a sphere's surface area is increasing at a rate of 15 ft.2/s, at what rate is the sphere's radius increasing when the radius is 5 ft? Find the tangent line to the circle with equation x + y = 25 at (0,5).

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