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yolomcswaggin20
20.10.2019 •
Mathematics
Suppose a forest fire spreads in a circle with radius changing at a rate of 5 feet per minute. at what rate is the area of the burning region increasing when radius reaches 200 feet?
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Ответ:
dR/dt = 5 (given)
dA/dr = dA/dr * dr/dt = 2 pi r * 5
dA/dr is therefore 10πr when radius is 200 ft, dA/dr is 2000 pi ft/min
Ответ:
Its for free
Step-by-step explanation: The store is going out of business because of
Coronavirus LOL