Answer:
Step-by-step explanation:
we have

Equate to zero


The formula to solve a quadratic equation of the form
is equal to
in this problem we have

so
substitute in the formula
Remember that

so
7.5x18.74= 140.55 is the correct answer
Given that the steps are not shown, I am going to show you all the rigtht steps in detail and so you will be able to compare and tell which step from you list contains an error:
1) Traslation into algebraic language:
<span>“three less than the quotient of a number squared and nine, increased by eight”
3 - (n^2) / 9
2) Evaluate it when n = 6 (replace the value of n)
3 - (3^2) / 9
3) solve the parenthesis
3 - 9/9
4) divide 9/9
3 - 1
5) Subtract
2
</span>
Now you know all the steps and can tell which of the steps on the list is wrong.
Numerator is the the number above the line on a fraction, while the denominator is the number underneath the line.

is similar to

Fraction with numerator -6 and denominator 8
Answer:
3
Step-by-step explanation:
he wants a 6,7,or8