for f(x) = square root x^2+5 and g(x) = 2 + square root x

Determine (f o g) (9). Round you answer to 2 decimal places, if necessary

Answer (f o g) (9) =

g(9)=2+3=5, f(5)=square root 25+5=sqrt 30=5.48....................................................................................

I still not sure if I understand how you got the answer.

(f o g) (9)=f(g(9))=f(2+sqrt 9)=f(5)=sqrt 25+5

how about now?

I think I might understand it better.

Okay I have studied it for a minute and I got it now, thank you for your help.

ok, the (f o g) (x)=f(g(x)) part is the formula you need to know

okay, got it now

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