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lawyer [7]
3 years ago
9

Ava is building a rectangular sandbox a model of the sandbox dimensions are shown which expression represents the perimeter of A

va’s sandbox

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
8 0

Answer:

Last option: 12x+28

Step-by-step explanation:

The perimeter of a rectangle can be calculated with the following formula:

P=2l+2w

Where "l" is the lenght of the rectangle and "w" is the width of the rectangle.

In this case, you can identify from the figure that:

l=3x+14\\w=3x

Then, you can write the following expression to represent the perimeter of the rectangle:

2(3x+14)+2(3x)

Finally you must simplify the expression; then you get:

 =6x+28+6x=12x+28

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