T represents temperature of water.
T=Me-kt , where t is equal or greater than 0. t represents time.
M= 55 and k = 0.0141 approx.
The time at which water is cooling at 1degree/second is -18.03, and hence is a puzzling answer( since time cannot take a negative value) . Explain why the answer is puzzling in terms of the student's model(equation)
If 55loge (0.986) = -0.7754 approx.
and T=55eloge (0.986t)
Show algebraic steps to obtain approximation and state value of approximation to 2 decimal places