A cup of coffee at 90 degrees celsius is put into a 15 degree celsius room when t=0. The coffee's temperature, f(t),

degrees-celsius

#1

A cup of coffee at 90 degrees celsius is put into a 15 degree celsius room when t=0. The coffee’s temperature, f(t), is changing at a rate given by f′(t)=−8(0.8)^t degrees celsius per minute, where t is in minutes.

Estimate the coffee’s temperature when t=8

Answer:

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