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2 years ago

Plz. solve for y: 3x - y = 13

Mathematics

2 answers:

NikAS [45]2 years ago

8 0

The answer is y= -13+3x

IRINA_888 [86]2 years ago

6 0

Answer:

y=-13+3x

Step-by-step explanation:

-1(3x-y)=-13

-3x+y=-13

y=-13+3x

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Find the sum of (x+5) and (2x+3)

telo118 [61]

X+5+2x+3
=3x+8

hope that was helpful!

5 0

2 years ago

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If you answer this you cool but still PLEASEE HELPP

defon

Its D

Because the rate of change is 1.5 and 1.5x10 is 15

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2 years ago

(8)+-(6)+-9<br><img src="https://tex.z-dn.net/?f=%285%29%20-%20%287%29%20%2B%20%289%29%20%2B%208%20-%204" id="TexFormula1" title

andrey2020 [161]

To solve both of these expressions, we want to add or subtract from left to right.

For the first one, we can rewrite it as:

8-6-9
=2-9
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The second one we can rewrite as:

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3 years ago

Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest t

vitfil [10]

Answer: The mean of the data is 433.75, variance of the data is 99667.19 and the standard deviation of the data is 315.7011.

Explanation:

The given data is 900, 35, 500 and 300.

The number of observation is 4.

Formula of mean is,

$\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}$

$\bar{X}=\frac{900+35+50+300}{4} =433.75$

The formula of variance is given below,

$\sigma^2=\frac{1}{n}\sum{(X-\bar{X})^2}$

$\sigma^2=\frac{398668.75}{4}$

$\sigma^2=99667.19$

The variance of the data is 99667.19

$\sigma=\sqrt{99667.19}$

$\sigma=315.7011$

The standard deviation of the data is 315.7011.

The other information or values of given chart is shown in the attached table.

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2 years ago

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Hunter-Best [27]

Do you want to know what it's called or??
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2 years ago

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