Mathematics: For (x) =2x+1 and g(x)= x^2-7, find ( f o g ) (2)

For (x) =2x+1 and g(x)= x^2-7, find ( f o g )

coreybaldwin22

14.03.2022

F(x)=2x+1
g(x)= x²-7,
f o g(x)=2(x²-7)+1=2x²-14+1=2x²-13
f o g(2)=2*2²-13=8-13=-5

or
g(2)=4-7=-3
f o g(2)=2*(-3)+1=-5

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sarahsompayrac

14.03.2022

-5

Step-by-step explanation:

Given functions,

f(x) =2x+1-----(1)

g(x)= x^2-7-----(2)

fog(x)=f(g(x))

=f(x^2-7) ( From equation (2) )

=2(x^2-7)+1 ( From equation (1) )

=2x^2-14+1

=2x^2-13

Hence,

fog(2) = 2(2)^2-13=8-13=-5

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niyah2x3

16.04.2023

x = 60°

Step-by-step explanation:

All the angles in a triangle add up to 180°. So, you have this equation.

87° + 33° + x = 180°

120° + x = 180°

x = 60°

The measure of angle x is 60°.

Hope that helps.

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