write 2 equivalent expressions for each and find the total price the price of a belt is $30 the belt is makeup 60%
1 answer:
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The function for a is (f o g) (x) = 8x^2-10.
Explanation
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I already knew that the g of x is equal to
so I substitute inside of the g of x
=======> 
=============> 
simplify it
=======> 
=========> 
Explanation
=========================
I already knew that the g of x is equal to
simplify it
Solving a polynomial inequation
Solving the following inequation:
(x - 8) (x + 1) > 0
We are going to find the sign both parts of the multiplication,
(x - 8) and (x + 1), have when
x < - 8
-8 < x < 1
1 < x
Then we know (x - 8) (x + 1) > 0 whenever (x - 8) (x + 1) is positive
We can see in the figure (x - 8) (x + 1) is positive when x < -8 and x > 1
Then
Answer:B