1. The problem statement, all variables and given/known datafind the integral from 100 to infiniti for (x-100)(.002e^(-.002*x)) 2. Relevant equations 3. The attempt at a solution.(xe^-(.002x))(e^(-.002x))-(-100e^(-.002x)) |from 100 to infiniti = -(100e^-.2)(e^-.2)+100e^(-.2)=14.84 the answer should be 409.37. What am I missing, please?