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A cup of coffee is heated to 180°F and place in a room that maintains a temperature of 65°F. The temperature of the coffee after t minutes is given by
[tex] c(t) = 65 + {115e}^{ - 0.042t} [/tex]
A. Find the temperature, to the nearest degree, of the coffee 10 minutes after it is place in the room.
B. Use Desmos (graphing utility) to determine when, in nearest tenth of minute, the coffee will reach lower than 100°F.
A cup of coffee is heated to 180°F and place in a room that maintains a temperature of 65°F. The temperature of the coffee after t minutes is given by
[tex] c(t) = 65 + {115e}^{ - 0.042t} [/tex]
A. Find the temperature, to the nearest degree, of the coffee 10 minutes after it is place in the room.
B. Use Desmos (graphing utility) to determine when, in nearest tenth of minute, the coffee will reach lower than 100°F.
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