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If a cup of coffee has temperature 99C in a room where the ambient air temperature is 21 C, then, according to Newton's Law of

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If a cup of coffee has temperature 99C in a room where the ambient air temperature is 21 C, then, according to Newton's Law of Cooling, the temperature of the coffee after t minutes is T(t) = 21 + 78e-/. What is the average temperature of the coffee during the first 16 minutes? average temp = OC

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