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LuckyWell [14K]
3 years ago
12

Find the area for the circle to the nearest hundredth.

Mathematics
2 answers:
Scilla [17]3 years ago
7 0

Hey!

-------------------------------------

Formula: A = πr²

Radius: diameter / 2 = r

-------------------------------------

We Know:

15 / 2 = 7.5 (radius)

π ≈ 3.14 (pi)

-------------------------------------

Solution:

A = (3.14)(7.5)²

A = (3.14)(56.25)

A = 176.625

A ≈ 176.71 m²

-------------------------------------

Answer:

Area ≈ 176.71 m²

-------------------------------------

Hope This Helped! Good Luck!

lys-0071 [83]3 years ago
3 0

the answer for the circle is 176.71

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Answer:

A. (55 x 5) - (40 x 5)

Step-by-step explanation:

You are solving how much miles (further along) would the second car be after 5 hours.

The first car averages 40 miles per hour. 5 hours later, it will have averaged about 200 miles in 5 hours (40 x 5 = 200).

The second car averages 55 miles per hour. 5 hours later, it will have averaged about 275 miles in 5 hours (55 x 5 = 275)

Subtract: 275 - 200 = 75

The second car would have averaged 75 more miles than the first car.

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uysha [10]

Using the equation of the test statistic, it is found that with an increased sample size, the test statistic would decrease and the p-value would increase.

<h3>How to find the p-value of a test?</h3>

It depends on the test statistic z, as follows.

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  • For a two-tailed test, it is the area under the normal curve to the left of -z combined with the area to the right of z, hence it is <u>2 multiplied by 1 subtracted by the p-value of z</u>.

In all cases, a higher test statistic leads to a lower p-value, and vice-versa.

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The equation is given by:

t = \frac{\overline{X} - \mu}{\frac{s}{\sqrt{n}}}

The parameters are:

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From this, it is taken that if the sample size was increased with all other parameters remaining the same, the test statistic would decrease,  and the p-value would increase.

You can learn more about p-values at brainly.com/question/26454209

3 0
3 years ago
Does anyone know the answer ?!?
IrinaK [193]

Answer:

40/100 = .4 = 40%

Step-by-step explanation:

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3 years ago
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All log graphs contain the points (1,0), (a,1), and (1/a,-1).<br><br> True .<br> False.
Bumek [7]
The correct answer is: True

Explanation:
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Hence the correct option is True.
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