3x^2+9x what is the width of the rectangle, show your work.

Step-by-step explanation:

The formula for determining the area of a rectangle is expressed as

Area = length × width

The area of the given rectangle is expressed as 3x² + 9 square inches

The length of the given rectangle is expressed as 3x inches.

Width = Area/length

Therefore,

Width = (3x² + 9)/3x

Factorizing the numerator. It becomes

3(x² + 3)/3x

3 cancels out because it is common to the numerator and the denominator. Therefore,

Width = (x² + 3)/x

Width = x²/x + 3/x

Width = x + 3/x inches

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