Question 1129612
The temperature T of an object in degrees Fahrenheit after t minutes is represented by the equation 
T(t) = 64e^ −0.0174t + 77.
To the nearest degree, what is the temperature of the object after one and a half hours? 
T(t) = {{{64*e^(-.0174t)+ 77}}}
t = 90 min
T(t) = {{{64*e^(-.0174*90)+ 77}}}
T(t) = {{{64*e^(-1.566)+ 77}}}
T(t) = {{{64*.208879 + 77}}}
T(t) = 13.368 + 77
T(t) ~ 90 degrees after 1.5hrs