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3 years ago

Solve S = 2πrh for r

Mathematics

1 answer:

Elodia [21]3 years ago

6 0

Divide both sides by 2<span>πh:-

r = S / 2</span><span>πh Answer</span>

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Solve for z −cz+6z=tz+83

Alborosie

Answer: z=83/c - 7 + t

Step-by-step explanation:

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3 years ago

Do most of the shoppers spend more than $30?

PtichkaEL [24]

Well, in the real would many people spend more than $30.

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3 years ago

Need help with this question

rosijanka [135]

Answer:

Step-by-step explanation:

step by step butt

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3 years ago

What is an example of when you would want consistent data and, therefore, a small standard deviation?

steposvetlana [31]

Answer:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

Step-by-step explanation:

For example if we have the following data:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

We see that the data are similar for all the observations so we would expect a small standard deviation

If we calculate the sample mean we can use the following formula:

$\bar X=\frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

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3 years ago

If the radius of a circle is 15 then the diameter of the same circle is

Svetlanka [38]

30, radius is equal to half the diameter, so to get diameter from the radius, multiply the radius by two.

6 0

3 years ago

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