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If a cup of coffee has temperature 97C in a room where the ambient air temperature is 21C, then, according to Newton's Law of Cooling,

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If a cup of coffee has temperature 97°C 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 + 76e^-t/47. What is the average temperature of the coffee during the first 26 minutes?average temp =

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