1. The resale value of a certain industrial machine decreases at a rate that depends on its age. When the machine is t years old, the rate at which its value is changing is -960e^-t/5 dollars per year.
a) Express the value of the machine in terms of its age and initial value.
b) If the machine was originally worth $5,200, how much will it be worth when it is 10 years old
Integrate with limits 1 to 9 (t^1/2 -4 /t^1/2) dt
Derivatives, Rate of Change and the Fundamental Theorem of Calculus are investigated. The solution is detailed and well presented. The response was given a rating of "5/5" by the student who originally posted the question.