The temperature, , in F, of a cup of coffee hours after it
Chapter , Problem 5.2.43(choose chapter or problem)
The temperature, , in F, of a cup of coffee hours after it is set out to cool is given by the equation: = 70 + 120(14) . (a) What is the coffees temperature initially (that is, at time = 0)? After 1 hour? 2 hours? (b) How long does it take the coffee to cool down to 90F? 75F?
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