A tray of lasagna comes out of the oven at 200°F and is placed on a table where the surrounding room temperature is 70°F. The temperature T(in °F) of
the lasagna is given by the function T(t) = e(4.86753-t) +70,0 < t, where t is time
(in hours) after taking the lasagna out of the oven. What is the rate of change
in the temperature of the lasagna exactly 2 hours after taking it out of the
oven?
A. - 17.59 degrees/hour
B. - 15.36 degrees/hour
C. - 20.21 degrees/hour
D. - 22.37 degrees/hour
E. - 19.22 degrees/hour