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anonymous

  • one year ago

A rectangle has sides measuring (2x + 7) units and (5x + 9) units. Part A: What is the expression that represents the area of the rectangle? Show your work to receive full credit. (4 points) Part B: What are the degree and classification of the expression obtained in Part A? (3 points) Part C: How does Part A demonstrate the closure property for polynomials? (3 points)

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  1. Haseeb96
    • one year ago
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    Area = length into width Area = (2x+7)(5x+9) now you can solve this equation yourself if you need help you can ask me

  2. anonymous
    • one year ago
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    I understand that part I was wondering do I have to combine like terms

  3. Haseeb96
    • one year ago
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    yes, you have to combine these terms and then add the similar terms

  4. anonymous
    • one year ago
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    would it be 7x+16 or do you use FOIL

  5. Haseeb96
    • one year ago
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    Area = (2x+7)(5x+9) = 10x^2 + 18x + 35x + 63 = 10x^2 +53x +63 this is your answer for part A

  6. anonymous
    • one year ago
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    okay thank you so much

  7. Haseeb96
    • one year ago
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    now for PArt B

  8. anonymous
    • one year ago
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    I am confused on what the degree and classifications really are

  9. Haseeb96
    • one year ago
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    would you tell me what is classification

  10. anonymous
    • one year ago
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    a reasoning for why you answer is correct?

  11. Haseeb96
    • one year ago
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    the highest degree is 2

  12. Haseeb96
    • one year ago
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    in our answer

  13. anonymous
    • one year ago
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    is two the degree and classification

  14. Haseeb96
    • one year ago
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    yes Part C: closed under multiplication

  15. anonymous
    • one year ago
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    thank you

  16. Haseeb96
    • one year ago
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    Welcome

  17. anonymous
    • one year ago
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    @cj49 what is the classification of part B?

  18. anonymous
    • one year ago
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    @imqwerty what is the classification of part B?

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