The value oa ompter t years after purchase is v(t)=500e^(-0.20t) dollars At what rate is the computers value falling after 4 years?

Question

The value oa ompter t years after purchase is v(t)=500e^(-0.20t) dollars At what rate is the computers  value falling after 4 years?

anonymous · Answer

You have the equation for the value, and you need the rate of change of the value. Take the derivative of the function:$$v'(t) = -0.20*500*e^{-0.20t.}$$ Plug in the value of time at which you want to know the rate, and you'll get the rate of decrease.

anonymous · Answer

I'm still getting the wrong answer

anonymous · Answer

I got about -$44.93. What's the correct answer?

anonymous · Answer

**Sorry, it's not $ -- it's in $ per year.

anonymous · Answer

I don't know yet,  my nor your answer are one of the multiple choie options