Mathematics, 24.06.2019 22:30 gg68814
Acircular oil slick is expanding at a rate of 2m^2/h. find the rate at which it's diameter is expanding when it's radius is 1.5m
Answers: 1
 
![\frac{d}{dt} ( 2 r)]_{r=1.5} = \frac{2}{\pi \times 1.5}=\frac{20}{\pi \times 15}=\frac{4\pi }{3}\text{ meter per hour}](/tpl/images/0013/4049/4786f.png)
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Acircular oil slick is expanding at a rate of 2m^2/h. find the rate at which it's diameter is expand...
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