The answer is a have a great day/night !
(f o f^-1) x = x
therefore (f o f^-1) 4 = 4
Its A
Answer: <u>x=11</u>
Step-by-step explanation:
Set the two equations equal to each other
5x+9 = 6x-2
9=x-2
11=x
x=11
X will need to be 11 in order to make the two equations equal to each other