Question #248142

The radius of a circular oil slick on the surface of a pond is increasing at the rate of 10 meters/min. At what rate is the circle's area changing when the radius of the oil slick is 20 m.


1
Expert's answer
2021-10-07T23:42:20-0400

dA/dt= 2(22/7)(20)(10)

= 1256.5m^2/min


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