Carmen is using the quadratic equation (x + 15)(x) = 100 where x represents the width of a picture frame. which statement about
the solutions x = 5 and x = -20 is true?
the solutions x = 5 and x = -20 are reasonable.
the solution x = 5 should be kept, but x = -20 is unreasonable.
the solution x = -20 should be kept, but x = 5 is unreasonable.
the solutions x = 5 and x = -20 are unreasonable.

The solutions x = 5 and x = -20 are reasonable

Step-by-step explanation:

The equation (x+15)(x)=100=x^2+15x=100

This equals x^2+15x-100=0

The general formula is

((-b+/-Sqrt(b^(2)-4ac))/(2a))

and a is 1, b is 15 and c is -100

So ((-15 +/- Sqrt(225-(-400))/(2))

((-15 +/- Sqrt(625))/(2))

(-15+/- 25)/(2)

x= (-15 + 25)/2

=10/2

=5

OR

x=(-15-25)/2

=-40/2

=-20

The solutions x = 5 and x = -20 are reasonable

Step-by-step explanation:

edge 2020

$32,660

step-by-step explanation:

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer