Mathematics, 11.10.2021 14:00 lerinmarie

A circular oil slick is expanding with radius, r in feet, at time t in hours given by r=12t−0.3t^22, for t in hours, 0≤t≤10. Find a formula for A=f(t), the area of the oil slick as a function of time.

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A circular oil slick is expanding with radius, r in feet, at time t in hours given by r=12t−0.3t^22,...