Mathematics, 15.02.2022 07:00, vickye146

A drop of oil makes a circular ring in a water puddle. The radius of the oil ring expands at 1.5 cm per second. If r(t) = 1.5t r(t)=1.5t and a(r) = \pi r^2 a(r)=πr2, what composition of functions describes the area of the oil ring in terms of time?

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A drop of oil makes a circular ring in a water puddle. The radius of the oil ring expands at 1.5 cm...