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3 years ago

So I was doing a hooda math escape game, and forgot how to do these. Can you help me?

Mathematics

2 answers:

Alika [10]3 years ago

5 0

to find the radius you divide the circumference by 2pi

area is pi times radius to the 2nd power

Maslowich3 years ago

5 0

Answer:

The formula for area equals pi times the radius squared, R stands for the radius measurement of the circle. So the formula is area equals pi R squared.

Step-by-step explanation:

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If the diameter of the above cylinder is 8" , what is the radius

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It would be 4" my good friend

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3 years ago

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A book has 200 pages. The number of mistakes on each page is a Poisson random variable with mean 0.01, and is independent of the

aleksandr82 [10.1K]

Answer:

198 pages have no mistakes.

Step-by-step explanation:

We are given the following in the question:

The number of mistakes on a page follows a poison distribution with

$\mu = \lambda = 0.01$

Formula:

$P(X =k) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\ \lambda \text{ is the mean of the distribution}$

We have to find the probability that there are no mistakes on a page.

$P(X =0) = \displaystyle\frac{(0.01)a^0 e^{-0.01}}{0!} = 0.9901$

Thus, approximately 99.01% of the pages have no mistakes.

Number of pages =

$\text{Total number of pages}\times 99.01\%\\\\200\times \dfrac{99.01}{100}\\\\\approx 198$

Thus, 198 pages have no mistakes.

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4 years ago

Someone please help me :’) would be thankful. I suck at math.

lakkis [162]

Answer:

I believe it's the second option!

Step-by-step explanation:

Please correct me if I'm wrong!

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3 years ago

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A ray lies on the line MN←→−. It starts at point Q and passes through the points P and R. Which of the following is a correct na

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Answer:

please mark my answer brainliest

Step-by-step explanation:

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4 years ago

According to the graph, when did the United States experience a decrease in GDP?

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Answer:

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Step-by-step explanation:

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