You are riding in a balloon, and at time t (in minutes) you are h(t) = t + sin(t) feet high.

You are riding in a balloon, and at time t (in minutes) you are h(t) = t + sin(t) feet high. If the temperature at an elevation h is T(h) = 72/1-h2 degrees Fahrenheit, then how fast is your temperature changing when t = 5 minutes?