A basketball court is in the shape of a rectangle. It has a length of (x - 7) meters and
a width of (x + 3) meters. The expression below represents the area of the court in
square meters:
(x - 7)(x + 3)
Which of the following simplified expressions represents the area of the basketball
court in square meters? (5 points)
1) - 6x + 3
2) x2 – 21
3) x2 - 4x – 21
4) x2 - 7x + 3

3)

Step-by-step explanation:

first you multiply the x that's in the first parenthesis by the x in the other parenthesis giving you x2

then you multiply that same x by the 3

you now have x2 + 3

Do the same with the -7

you should get x2 + 3x - 7x - 21

Combine like terms( +3x and -7x)

and you get

answer: i can’t tell you that

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