107k views
3 votes
What is the correct answers NEED ANSWER ASAP​

What is the correct answers NEED ANSWER ASAP​-example-1
User Yulan  Liu
by
3.0k points

1 Answer

9 votes

Answer:

Your Answer is 11 inches by 2 inches

Explanation:

Area of Rectangle: Area = Length * Width

Given information:

  • Area = 22 in^2
  • Length = 2x - 1
  • Width = x - 4

Put that into the Formula.

Area = Length * Width

22 in^2 = (2x - 1) * (x - 4)

Solve.

22 in^2 = (2x - 1) * (x - 4)


22 = (2x^2 - 9x + 4)\\2x^2 - 9x - 18 = 0

Factor it.

(2x^2 - 9x - 18) = 0

(2x + 3)(x-6) = 0


x=-(3)/(2) ,6

Plug that into the Length and Width to find the actually Length and Width.

Length:


2x - 1\\2*-(3)/(2)-1\\ -3-1\\-4\\

Width:


x - 4\\-(3)/(2)-4\\ -(11)/(2)

Area = Length * Width

Area = - 4* -11/2

Area = 22

Length:


2x - 1\\2*6-1\\ 12-1\\11\\

Width:


x- 4\\6-4\\ 2

Area = Length * Width

Area = 11 * 2

Area = 22 in^2

User Ala
by
3.4k points