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Exam: Final
7. The length of a rectangle is 2x - 3 and the width
is x + 1. Which of the following represents the
perimeter of the rectangle?
A. 2x²+x-3
B. 2x2 - x-3
c. 6x+4
D. 6x-4

Respuesta :

AdeTolu

Answer:

D)

[tex]6x - 4[/tex]

Step-by-step explanation:

Perimeter of a rectangle = 2(length + width)

where,

Length = 2x - 3; width = x + 1

Thus,

[tex]p = 2(2x - 3 + x + 1)[/tex]

Collect like terms in the bracket

[tex]p = 2(2x + x - 3 + 1)[/tex]

[tex]p = 2(3x - 2)[/tex]

Expand the bracket

[tex]p = 6x - 4[/tex]

amanarsalan

Answer:

D. 6x-4

Step-by-step explanation:

Since the perimeter of rectangle is;

2 [length + width]

length = (2x - 3)

width = (x + 1)

2 [(2x - 3) + (x + 1)]

4x - 6 + 2x + 2

6x - 4

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