A
Step-by-step explanation:
I do now know what this is about
Answer:
The answer is 22 1/2-18 3/7. first we need to get a common denominator for the fractions. I will do 14. Now we have 22 7/14-18 6/14=4 1/14 ez
Step-by-step explanation:
<u>Answer:</u>
are two roots of equation 
<u>Solution:</u>
Need to solve given equation using quadratic formula.

General form of quadratic equation is 
And quadratic formula for getting roots of quadratic equation is

In our case b = -1 , a = -3 and c = -3
Calculating roots of the equation we get

Since
is equal to -35, which is less than zero, so given equation will not have real roots and have complex roots.

Answer:
2,8h (2h and 47 minutes aprox.)
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Assumed it is:</u>
<u>Converting into vertex form:</u>
- f(x) =
- - x² + 16x - 13 =
- - (x² - 16x + 64 - 64) - 13 =
- - (x - 8)² + 64 - 13 =
- - (x - 8)² + 51