SOLUTION: The temperature T of an object in degrees Fahrenheit after t minutes is represented by the equation T(t) = 64e−0.0174t + 79. To the nearest degree, what is the temperature of

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Question 1149134: The temperature T of an object in degrees Fahrenheit after t minutes is represented by the equation
T(t) = 64e−0.0174t + 79.
To the nearest degree, what is the temperature of the object after one and a half hours?
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.

One and a half hour is 90 minutes.


Substitute the value t= 90 into the formula and calculate.


Happy calculations (!)


Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


Use "^" (shift-6) to denote exponentiation; and parentheses are required also:

T(t) = 64e^(−0.0174t) + 79

In the formula, t is in minutes; one and a half hours is 90 minutes.

Plug in t=90 and evaluate.

Use a calculator; and round as directed....