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Llana [10]
3 years ago
13

Find the circumference and the area of a circle with diameter 7 cm.

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
3 0

Answer:

21.98 is the circumference because is it 7 pi 7 times 3.14. For the area though it is 38.48 because you need to get the radius of the circle and you divided 7 by 2 which is 3.5 and here is the work A=πr2=π·3.52≈38.48451

Step-by-step explanation:

Hope this helped and you understood if you want it would help a lot if you put it brainliest.

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Answer:

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Step-by-step explanation:

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In a standard normal distribution, what z value corresponds to 17% of the data between the mean and the z value?
hjlf
You're looking for a value z such that

\mathbb P(0

Because the distribution is symmetric, the value of z in either case will be the same.

Now, because the distribution is continuous, you have that

0.17=\mathbb P(0

The mean for the standard normal distribution is 0, and because the distribution is symmetric about its mean, it follows that \mathbb P(Z.

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You can consult a z score table to find the corresponding score for this probability. It turns out to be z\approx0.4399.
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3 years ago
What two numbers multiply to 75 and add too -20
tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

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