Question

Pre cal help please

Answer 1

We have the following function

$f(x)=\frac{3}{x+2}-\sqrt{x-3}$

We want to know what is the value of f(x) when x is 19

$f(19)=\frac{3}{19+2}-\sqrt{19-3}=1/7-4=\boxed{-27/7}$

If you have additional questions feel free to ask.

Hope this helps.