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muminat
4 years ago
15

Math question down below

Mathematics
1 answer:
kramer4 years ago
7 0
X + 4/5 = 11
x = 11 - 4/5
x = 55/5 - 4/5
x = 51/5 or 10 1/5

or u can do it this way..
x + 4/5 = 11.....multiply everything by common denominator of 5
5x + 4 = 55
5x = 55 - 4
5x = 51
x = 51/5 or 10 1/5
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Solve each equation by completing the square. n^2 - 6n + 6 = -2​
Law Incorporation [45]
<h3><u>Explanation</u></h3>
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( {n}^{2}  - 6n) + 6 =  - 2

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( {n}^{2}  - 6n + 9) + 6 - 9 =   - 2 \\  {(n - 3)}^{2}  - 3 =  - 2 \\  {(n - 3)}^{2}  = 1

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\sqrt{ {(n - 3)}^{2} }  =   + \sqrt{1}  \\   \sqrt{ {(n -  3)}^{2} } =  -  \sqrt{1}  \\ n - 3 = 1 \\ n - 3 =  - 1

n - 3 = 1 \:  \:  \: or \:  \:  \: n - 3  =  - 1 \\ n = 1 + 3 \:  \:  \:  or \:  \:  \: n =  - 1 + 3 \\ n = 4 \:  \:  \: or \:  \:  \: n = 2

<h3><u>Answer</u></h3>

\large \boxed {n = 4,2}

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3 years ago
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It represents equal parts of a whole or a collection?
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Step-by-step explanation:

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3 years ago
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Prove that: (a2 - b2)3 + (b2-c2)3+ (c2-a2)3 = 3 (a+b) (b+c) (c+a) (a-b) (b-c) (c-a).
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3 years ago
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