3 years ago

Can someone help me with this. Will Mark brainliest. Need answer and explanation/work. Thank you.

Mathematics

1 answer:

White raven [17]3 years ago

6 0

Answer:

-2x+2

Step-by-step explanation:

it is directly underneath the original equation and they never intersect

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Answer:

$\= x = 82$

$s = 9.64$

Step-by-step explanation:

From the question we are told that

The data is 87 91 86 82 72 91 60 77 80 79 83 96

Generally the point estimate for the mean is mathematically represented as

$\= x = \frac{\sum x_i }{n}$

=> $\= x = \frac{87 +91 + 86 + \cdots + 96}{12}$

=> $\= x = 82$

Generally the point estimate for the standard deviation is mathematically represented as

$s = \sqrt{\frac{ \sum ( x_i - \= x )^2 }{ n -1 } }$

=> $s = \sqrt{\frac{ ( 87 - 82 )^2 +( 91 - 82 )^2 + \cdots + ( 96 - 82 )^2 }{ 12 -1 } }$

=> $s = 9.64$

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Step-by-step explanation:

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Katarina [22]

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Step-by-step explanation:

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Read 2 more answers

Help i will give brainliest and no links or i will report

amm1812

Answer:

Step-by-step explanation:

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Last question...! And then I’m totally done with asking questions for a while. -v-;; Any answers or advice on how to solve?

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Multiply both sides by "x"

1 -x + 2x = 7

x = 6

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