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3 years ago

Find standard deviation 22,25 30 35 40 45 48

Mathematics

1 answer:

poizon [28]3 years ago

8 0

Answer:

To calculate the standard deviation of those numbers:

Work out the Mean (the simple average of the numbers)

Then for each number: subtract the Mean and square the result.

Then work out the mean of those squared differences.

Take the square root of that and we are done!

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3 years ago

Use the distributive property to remove the parentheses.<br> 7(w+3)<br> What is this answer

const2013 [10]

Answer:

7w+21

Step-by-step explanation:

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4 years ago

Read 2 more answers

PLEASE HELP IT’S TIMED

Sauron [17]

Answer:

a = -

b = -

c = 9

d = 3

e = 3

f = 2

Step-by-step explanation:

First we will solve the expression:

$\frac{3x}{2x-6}+\frac{9}{6-2x}$

Solving:

First we will take negative sign common, then take LCM of denominator and simplify the expression.

$=\frac{3x}{2x-6}+\frac{9}{\textbf{-}(2x-6)}\\=\frac{3x}{2x-6}+\frac{\textbf{-}9}{(2x-6)}\\Taking\:LCM\\=\frac{3x-\mathbf{9}}{2x-6}\\=\frac{\mathbf{3}(x-\mathbf{3})}{\mathbf{2}(x-3)}\\=\mathbf{\frac{3}{2}}$

So, After solving we get:

a = -

b = -

c = 9

d = 3

e = 3

f = 2

8 0

3 years ago

How to divide an answer in simplest terms

Rufina [12.5K]

Answer:

Well to find simplest terms you have to find the GCF. (greatest common factor) for the numerator and the denominator

Step-by-step explanation:

So lets say you have 4/8 they both can be divided by 2. So that is what you do. Divide by two on the numerator and the denominator to get 1/2.

Also, if you have 3/5 you can't simplify it anymore because it is already in the lowest terms.

I hope that helped. If you have any questions just ask.

7 0

4 years ago

One number is 5 less than a second number.twice the second number is 4 less than 4 times the first.find the two numbers

dalvyx [7]

Answer:

9 and 14

Step-by-step explanation:

One number is 5 less than a second number.

a = b - 5

Twice the second number is 8 less than 4 times the first.

2b = 4a - 8

replace a with (b-5)

2b = 4(b-5) - 8

2b = 4b - 20 - 8

2b - 4b = -28

-2b = -28

b = 14

then

a = 9

8 0

3 years ago

Find standard deviation 22,25 30 35 40 45 48​

Find standard deviation 22,25 30 35 40 45 48