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shepuryov [24]
4 years ago
8

Which of the following is a rational function

Mathematics
2 answers:
Zarrin [17]4 years ago
8 0
I agree that the answer is C.
VARVARA [1.3K]4 years ago
7 0
I believe the answer is c
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The answer is 3 out of six.
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Convert 104/25 into a mixed number
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The answer is 4and4/25
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What are all the rational roots of the polynomial f(x) = 20x4 x3 8x2 x â€"" 12?.
pav-90 [236]

The rational roots of the polynomial given in the question are -4/5 and 3/4.

Given-

Given polynomial function is,

20x^4+x^3+8x^2+x-12

The given polynomial function has the four-degree equation in which the greatest power of the variable is four. Suppose one root of <em>x </em>is 1 to solve it further. So one factor is,

x-1

Rewrite the given equation,

20x^4+8x^2-12+x^3+x

(20x^4+8x^2-12)+(x^3+x)

(20x^4+20x^2-12x^2-12)+(x^3+x)

(4x^2+4)(5x^2-3) +(x^3+x)

4(x^2+1)(5x^2-3) +x(x^2+1)

On the factor above equation, we get.

[4(5x^2-3)+x](x^2+1)

[20x^2-12+x](x^2+1)

On the factor, we get,

(5x+4)(4x-3)(x^2+1)

x=-\dfrac{4}{5} , \dfrac{3}{4}

Hence, the rational roots of the polynomial given in the question are -4/5 and 3/4.

For more about the polynomial, follow the link below-

brainly.com/question/17822016

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Kathy is baking 3 apple pies. Each pie requires 2 3/4 pounds apples. Apples cost $2.49 a pound. About how much will Kathy spend
salantis [7]

<em>Answer</em><em>:</em>

<em>$</em><em>2</em><em>0</em><em>.</em><em>5</em><em>5</em>

<em>Explanation</em><em>:</em>

  • 1apple pie needs 2/3/4pounds of apple
  • 1pound cost $2.49
  • 2/3/4 = ?
  • 2/3/4 ×2.49
  • =$6.85 for one pie
  • For 3 pies ,
  • =$6.85×3
  • = $20.55
8 0
3 years ago
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