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2 years ago

3-6n+3n=-3+4-4n can somebody help me?

Mathematics

1 answer:

ElenaW [278]2 years ago

8 0

Anwser : n = -2
Combine Like Terms
Add 4n to both sides
Subtract 3 from both sides
A = n= -2

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irakobra [83]

Isolate the x. Note the equal sign. What you do to one side you do to the other.

Subtract 2y from both sides

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2x = 10 - 2y

Isolate the x, divide 2 from both sides and from all terms.

(2x)/2 = (10 - 2y)/2

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Place the variable in the front

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2 years ago

. Use the statistical features of your calculator to find the mean and the standard deviation to the nearest tenth of a data set

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Answer:

Mean = 1.9

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Step-by-step explanation:

The Mean is calculate by the formula:

$Mean = \frac{\text{Sum of all the observation}}{\text{Total number of observation}}$

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Thus Mean to the nearest tenth is 1.9

Standard Deviation is the square root of sum of square of the distance of observation from the mean.

$Standard deviation(\sigma) = \sqrt{\frac{1}{n}\sum_{i=1}^{n}{(x_{i}-\bar{x})^{2}} }$

where, $\bar{x}$ is mean of the distribution.

Putting all values in the formula, We get

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2 years ago

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Y=-13x+72 is the answer

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Answer: 3 option correct

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Answer:

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Step-by-step explanation:

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