What is the sum of all measures of the interior angles of a regular pentagon?

1 answer:

6 0

There are 540 degrees total in the interior angles of a regular pentagon.

Just so you know, the total degrees of interior angles goes up by 180 degrees.

A triangle is 180 degrees, a quadrilateral 360, and a pentagon 540.

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Find X.............

maks197457 [2]

$an.x = 180 - 25(linear \: pair) \\ = > an.x = 155$

So, an. X is 155°.

Hope this will help you.

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7 0

3 years ago

What is 8% of 75. To lazy to do the work .

AURORKA [14]

It's 6 because you have to divide $\frac{8}{100}$ = $\frac{x}{75}$ . You cross multiply then you divide by 100 then you get your answer.

4 0

3 years ago

A counselor records the number of disagreements (per session) among couples during group counseling sessions. If the number of d

Shalnov [3]

Answer:

$P(X>4)=P(\frac{X-\mu}{\sigma}>\frac{4-\mu}{\sigma})=P(Z>\frac{4-4.4}{0.4})=P(z>-1)$

And we can find this probability with the complement rule:

$P(z>-1)=1-P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the disagreements of a population, and for this case we know the distribution for X is given by:

$X \sim N(4.4,0.4)$