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stiks02 [169]
2 years ago
9

The movie lasted 105 minutes if the movie started at 1:15 pm at what time did it end?

Mathematics
1 answer:
Valentin [98]2 years ago
4 0
3:30 because 105/60 equals 2.15
then you just add the time to the starting time
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Find the radius of each figure. round to the nearest tenth.
k0ka [10]

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Step-by-step explanation:

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pi*r^3=1,767.1

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The cube root of 1767.1/pi (remember to cube root both denominator and numberator!!!) is about 8.25475 m

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3 years ago
Solving proportion 10\8=n\10
Zanzabum
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2 years ago
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3 years ago
Researchers are studying the distribution of subscribers to a certain streaming service in different populations. From a random
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Answer:

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Step-by-step explanation:

Given

n = 200

x_1 = 34 -- City C

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Required

Determine the 90% confidence interval

This is calculated using:

CI = \bar x \± z\frac{\sigma}{\sqrt n}

Calculating \bar x

\bar x = \bar x_1 - \bar x_2

\bar x = \frac{x_1}{n} - \frac{x_2}{n}

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\bar x = 0.17 - 0.27

For a 90% confidence level, the ​z-score is 1.65.  So:

z = 1.65

Calculating the standard deviation \sigma

\sigma = \sqrt{(\bar x_1)*(1 - \bar x_1) + (\bar x_2)*(1 - \bar x_2) }

So:

\sigma = \sqrt{(0.17)*(1 - 0.17) + (0.27)*(1 - 0.27) }

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So:

CI = (0.17 - 0.27)\± 1.65\frac{\sqrt{(0.17)*(0.83) + (0.27)*(0.73)}}{\sqrt {200}}

CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}

7 0
2 years ago
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