Adding Polynomials Perimeter

What is the perimeter of the triangle shown?

• 9r²+r-5

• 9r⁴+r²-4

• 9r²-r+4

• 9r²+r-4

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CCSS.HSA.APR.A.1

• A
• B
• C
• D

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CCSS.HSA.APR.A.1

• A
• B
• C
• D

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CCSS.6.EE.A.3

Which expression represents the perimeter?

• 3x + 3

• 4x + 3

• 4x + 6

• 6x + 6

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CCSS.7.EE.A.1

What is the perimeter of the triangle shown in terms of r?

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CCSS.HSA.APR.A.1

Chris drew a triangle on his paper. He labeled one side 2x + 3, another side with 5x² - 3x + 7 and the third side with -3x² + 2. He then found the perimeter of his triangle. Which of the following polynomials represents the perimeter of Chris's triangle?

• -2x² + x + 12

• 2x² - x + 12

• 8x² + 5x - 12

• -8x² - x + 12

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CCSS.HSA.APR.A.1

Sarah is planning to install a fence around her rectangular vegetable garden. If the length of the garden is represented by 'x+2' and the width by 'x-3', what is the total length of the fence needed to enclose the garden?

• x²+8x-5

• 2x²+16x-10

• 2x²+10x-8

• 6x-2

Find the perimeter of a hexagon with two sides of length 5p + 7 and four sides of length 3p + 2.

• 8p + 9

• 30p + 42

• 18p + 12

• 22p + 22

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CCSS.7.EE.A.1

What is the perimeter of a rectangle, in terms of x, with length of 4x - 9 and a length of 8x + 2?

• 12x - 7

• 24x -14

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CCSS.HSA.APR.A.1

A rectangle has width (2x + 3) and length (2x - 4).  What is the perimeter of the rectangle?

• 4x - 12

• 4x - 1

• 8x - 2

• 4x² - 2x - 12

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CCSS.7.EE.A.1