Mathematics, 10.04.2020 03:15, mikecool224

1. At time t = 0 minutes, the temperature of a cup of coffee is 180 degrees Fahrenheit. Left in a room
whose temperature is 70 degrees Fahrenheit, the coffee cools so that its temperature function T(t),
also measured in degrees Fahrenheit, satisfies the differential equation * = - T +35.
(a) Find an expression for T(t) using the initial condition T(0) = 180.
(b) Find lim T(t). Explain what this limit means in the context of the problem.
(c) At what time t is the temperature of the coffee decreasing at the rate of 15 degrees Fahrenheit per
minute? How hot is the coffee at that point? Indicate units of measurement.

Answers: 2

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1. At time t = 0 minutes, the temperature of a cup of coffee is 180 degrees Fahrenheit. Left in a ro...