Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
(integrate (f(x) = (5-1.5) * (1-0.0409)^x +1.5); from 0 to 15) + (25* ((5-1.5) * (1-0.0409)^15+1.5))
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random