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2 years ago

Please hellllppppp me!!

Mathematics

2 answers:

k0ka [10]2 years ago

8 0

Answer:

Just set up an equation. You'll be fine

Step-by-step explanation:

I don't want to do it.

vampirchik [111]2 years ago

6 0

Answer:

10. 40+ 3*q = Total Points

11. m + 240 ÷ 9 = Miles per Hour

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Find the standard deviation for the group of data items 4, 4, 4, 4, 6, 8 The standard deviation is (Simplify your answer. Round

marysya [2.9K]

Answer: 1.53

Step-by-step explanation:

The given data : 4, 4, 4, 4, 6, 8

Number of data values : n= 6

The mean value of the given data will be :-

$\overline{x}=\dfrac{\sum_{i=1}^{6}x_i}{n}\\\\\Rightarrow\ \overline{x}=\dfrac{30}{6}=5$

The formula to find standard deviation:_

$\sqrt{\dfrac{\sum(x-\overline{x})^2}{n}]$

Now,

$\sum_{i=1}^{6}(x_i-\overline{x})^2=(-1)^2+(-1)^2+(-1)^2+(-1)^2+(1)^2+(3)^2\\\\=1+1+1+1+1+9=14$

The standard deviation will be :-

$\sigma=\sqrt{\dfrac{14}{6}}\approx1.53$

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3 years ago

Write out the following number is words: 3,508

IRISSAK [1]

Three thousand five hundred eight

5 0

3 years ago

Read 2 more answers

Factorise fully <br>-14x - 8<br><br>ease do quick, will mark brainiest!

OleMash [197]

Answer:

-2( 7x+4)

Step-by-step explanation:

-14x - 8

Factor out -2

-2*7x -2*4

-2( 7x+4)

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3 years ago

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Write the equations for 74,2 and 49

serious [3.7K]

Answer:

$x+10y=94$

Step-by-step explanation:

Assuming we want to find the equation (74,2) and (4,9)

This is an equation of a straight.

Let this equation be y=mx+b.

$m=\frac{9-2}{4-74} =-\frac{1}{10}$

We substitute the slope and (4,9) to get:

$y-9=-\frac{1}{10}(x-4)$

We rewrite in standard form to get:

$x+10y=94$

5 0

3 years ago

22,389 ÷ 13=??R??<br> Please add the remainder and answer! I will give brainliest!

ozzi

Answer:

1,722 R=3 hope this helps

6 0

2 years ago