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3 years ago

The formula for the perimeter of a square is p = 4s, where s is the length of a side. find the perimeter of each square.

Mathematics

1 answer:

omeli [17]3 years ago

4 0

Which square do you mean. We dont see any squares

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Answer:

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Step-by-step explanation:

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2 years ago

Evaluateing expressions 9x-c

lyudmila [28]

Answer:

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Step-by-step explanation:

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3 years ago

2 (x + 4) = 4.2 (x - 2) - 2x

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Please help ‼️‼️

Sergeu [11.5K]

Answer:

m = 10

Step-by-step explanation:

Find 'n' first..... then pythag theorem for 'm'....

n is to 5 as 15 is to n

n/5 = 15/n

n^2 = 75 n = sqrt (75)

Then m^2 = n^2 + 5^2

m^2 = 75 + 25 s-o-o-o-o: m = 10

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2 years ago

The number of cars running a red light in a day, at a given intersection, possesses a distribution with a mean of 3.6 cars and a

Iteru [2.4K]

Answer:

$X \sim N(3.6,5)$

Where $\mu=3.6$ and $\sigma=5$

Then we have:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

With the following parameters:

$\mu_{\bar X}= 3.6$

$\sigma_{\bar X} = \frac{5}{\sqrt{100}}= 0.5$

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 number of cars running a red light of a population, and for this case we know the distribution for X is given by:

$X \sim N(3.6,5)$

Where $\mu=3.6$ and $\sigma=5$

Since the distribution for X is normal then we know that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

With the following parameters:

$\mu_{\bar X}= 3.6$

$\sigma_{\bar X} = \frac{5}{\sqrt{100}}= 0.5$

5 0

3 years ago