Question

Screenshot below! want to learn how to do it!

Answer 1

@satellite73

Answer 2

find \(f(10)\)
then find \(g(10)\)
then multiply those two answers

Answer 3

f=(x^2-7)(10)?

Answer 4

oh no lets go slow

Answer 5

please :P

Answer 6

\(f\)is a function
it is not a multiplication
so for example if \(f(x)=x^2-7\) hten \[f(2)=2^2-7\\
f(3)=3^2-7\\
f(\pi)=\pi^2-7\\
f(\spadesuit)=\spadesuit^2-7\]

Answer 7

oh! so therefore

Answer 8

f(10)=10^2-7

Answer 9

yes

Answer 10

and then that would mean that G(10)=13-10?

Answer 11

yes

Answer 12

so then (fg)(10)=10^2-7+13-10?

Answer 13

no
evaluate each function first

Answer 14

\[f(10)=10^2-7=?\]

Answer 15

ok so 100-7=93

f(10)=93

13-10=3

so G=3

Answer 16

yes
NOW multiply to find \(fg(10)\)

Answer 17

use a calculator

Answer 18

so that would be ((93)(3)) which is 279

so

(fg)(10)=279

Answer 19

yes

Answer 20

got it! thanks! Next one coming up in a different question!

Answer 21

k