anonymous
  • anonymous
Can someone check my answers for an automatic FAN and MEDAL!
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
A rectangle has sides measuring (4x + 5) units and (3x + 10) units. Part A: What is the expression that represents the area of the rectangle? Show your work to receive full credit. -- To find area you have multiply both sides together so (4x + 5) * (3x + 10) units which equals 12x^2 +55x+50. Part B: What are the degree and classification of the expression obtained in Part A? -- l the degree is the highest exponent, so 2 and classification would be a polynomial. Part C: How does Part A demonstrate the closure property for polynomials? -- I NEED HELP WITH THIS PART
anonymous
  • anonymous
anonymous
  • anonymous

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jim_thompson5910
  • jim_thompson5910
For part B, you can get more specific with the classification.
anonymous
  • anonymous
Ok but can you help me with part c I am really confused @jim_thompson5910
jim_thompson5910
  • jim_thompson5910
hint for part B: the term starts with the letter Q
jim_thompson5910
  • jim_thompson5910
the closure property is the idea if you take two numbers, and do some operation (eg: multiply) then the result will be in the same set example: take two integers, multiply them, the result is an integer. So we say the set of integers is closed under multiplication
jim_thompson5910
  • jim_thompson5910
it extends to polynomials take any two polynomials multiply them the result is some other polynomial
jim_thompson5910
  • jim_thompson5910
so the set of polynomials is closed under multiplication
anonymous
  • anonymous
That would be the answer
anonymous
  • anonymous
?
jim_thompson5910
  • jim_thompson5910
yeah more or less for part c

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