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larisa86 [58]
3 years ago
13

What are the steps for this problem? -10-8n=n-(8n+8)

Mathematics
2 answers:
White raven [17]3 years ago
8 0

Answer:

16n

Step-by-step explanation:

your supposed to subtract 8 to get n as the answer

Elden [556K]3 years ago
6 0

Answer:

n =  - 2

Step-by-step explanation:

- 10 - 8n = n - (8n + 8)

First, you should distribute the -1 on the right.

- 10 - 8n = n - 8n - 8

Next, add 8n to both sides. This should cancel out the 8n.

- 10 = n - 8

Now, add 8 to both sides. This will get n by itself.

- 2 = n

Your answer is n = -2.

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<u><em>Explanation</em></u>

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First, for each point(x, y), we need to calculate x², y² and xy .

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<em>(Please refer to the attached image for the table )</em>

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r= \frac{n(\Sigma xy)-(\Sigma x)(\Sigma y)}{\sqrt{[n\Sigma x^2-(\Sigma x)^2][n\Sigma y^2-(\Sigma y)^2]}}\\ \\ r=\frac{7(1480)-(44)(183)}{\sqrt{[7(362)-(44)^2][7(6575)-(183)^2]}}\\ \\ r=\frac{10360-8052}{\sqrt{(598)(12536)}}\\ \\ r=\frac{2308}{\sqrt{7496528}}\\ \\ r=0.84

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