jordann23 jordann23

22-02-2017
Mathematics

Answered

An offshore oil well is leaking oil and creating a circular oil slick. If the radius of the slick is growing at a rate of 5 miles/hour, find the rate at which the area is increasing when the radius is 6 miles.

Verified Answer :

ChandrikaP ChandrikaP

22-02-2017

area of a circle=πr^2
rate of change in area dA/dt=2rπ
at r=6 miles
dA/dt=22π=4π

hope i am right :)

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