Calculate the perimiter of a regular pentagon with side length of 5 cm

Mathematics

1 answer:

avanturin [10]3 years ago

8 0

Answer:

Regular pentagon

Solve for perimeter

P=25cm

a Side

You might be interested in

Last year the depth of the river was 4.2 feet deep.

erastova [34]

Answer:

3.864

Step-by-step explanation:

convert 8% to decimal, you get .08

multiply that by 4.2 and you get 0.336, which means that 0.336 is 8% of 4.2

subtract 0.336 from 4.2

3.864

4 0

3 years ago

Suppose data made available through a health system tracker showed health expenditures were $10,348 per person in the United Sta

nignag [31]

Answer:

a) 30.08% probability the sample mean will be within $100 of the population mean.

b) 0% probability the sample mean will be greater than $12,600

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the Central Limit Theorem.

Normal probability distribution

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .