# Math Help - Average Value of a Function

1. ## Average Value of a Function

Find the average value of on the interval .

I don't even know where to start, please help!

2. You just have to compute $\frac{1}
{{5 - 0}}\int_0^5 { - 2te^{ - t^2 } \,dt} .$

And this is very straightforward, do you see the suitable substitution?