anonymous
  • anonymous
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)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Haseeb96
  • Haseeb96
Area = length into width Area = (2x+7)(5x+9) now you can solve this equation yourself if you need help you can ask me
anonymous
  • anonymous
I understand that part I was wondering do I have to combine like terms
Haseeb96
  • Haseeb96
yes, you have to combine these terms and then add the similar terms

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anonymous
  • anonymous
would it be 7x+16 or do you use FOIL
Haseeb96
  • Haseeb96
Area = (2x+7)(5x+9) = 10x^2 + 18x + 35x + 63 = 10x^2 +53x +63 this is your answer for part A
anonymous
  • anonymous
okay thank you so much
Haseeb96
  • Haseeb96
now for PArt B
anonymous
  • anonymous
I am confused on what the degree and classifications really are
Haseeb96
  • Haseeb96
would you tell me what is classification
anonymous
  • anonymous
a reasoning for why you answer is correct?
Haseeb96
  • Haseeb96
the highest degree is 2
Haseeb96
  • Haseeb96
in our answer
anonymous
  • anonymous
is two the degree and classification
Haseeb96
  • Haseeb96
yes Part C: closed under multiplication
anonymous
  • anonymous
thank you
Haseeb96
  • Haseeb96
Welcome
anonymous
  • anonymous
@cj49 what is the classification of part B?
anonymous
  • anonymous
@imqwerty what is the classification of part B?

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