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xeze [42]
3 years ago
9

I need help!!!!!!!!!!

Mathematics
1 answer:
ad-work [718]3 years ago
3 0

9514 1404 393

Answer:

  21.  3x^2 +7x

  22.  6x^3 +3x

Step-by-step explanation:

21. The perimeter is the sum of the side lengths.

  P = (x^2 +3x +1) +(4x -1) +(2x^2)

  P = x^2(1 +2) +x(3 +4) +(1 -1) . . . . combine like terms

  P = 3x^2 +7x

__

22. The area is the product of the dimensions.

  A = (3x)(2x^2 +1)

  A = 6x^3 +3x . . . . . use the distributive property

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3 years ago
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marysya [2.9K]
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Kiya had a coupon for 10% off one frozen turkey breast. the turkey breasts cost $8.50 each, and kiya bought two. how much did sh
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10% of $8.50 is $0.85

$8.50 + $8.50 - $0.85 = $16.50

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vazorg [7]

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4 years ago
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Ronch [10]

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