## electrochika 4 years ago Calculus help!

1. electrochika

If $\int\limits_{a}^{b}$ f(x) dx = a +2b then $\int\limits_{a}^{b}$ (f(x) +5) dx = what?

2. anonymous

$\int_a^b 5 dx =5\times(b-a)$

3. anonymous

(a+2b+5b)-( a+2b+5a) = 5(b-a)

4. anonymous

integral of a constant is the constant times the length of the path|dw:1327546356263:dw|

5. anonymous

so i guess your final answer is $a+2b+5(b-a)$ which you can probably clean up with some algebra