F(x) represents how many books in total and x represents the number of days
Answer:
7x -1 is correct after combining like terms
Step-by-step explanation:
6+8x-7-x
To simplify algebraic expression we combine like terms
In the given expression
-x or -1x are same
8x and -1x are like terms
6 and -7 are also like terms
8x-1x= 7x
6 - 7 = -1
So 7x -1 is correct after combining like terms
ANSWER



EXPLANATION
The given quadratic equation is:

We rewrite in the standard quadratic equation form to obtain,

Comparing this to the general standard quadratic equation.

We have my



we know that

we have

substitute the value of
in the expression above

therefore
<u>the answer is</u>

Answer:
55 degrees
Step-by-step explanation: