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3 years ago

14

QUESTION -----------------------------------------------------------------------------------------------------------------------

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haha jkjk again. It's the morning and if you think I'm going to be doing HW this early then you be crazy.

Oof .-.

2 answers:

nekit [7.7K]3 years ago

8 0

Answer:

Oof .-.

Step-by-step explanation:

I know this is late but yep I’m just sad :(

Vladimir [108]3 years ago

3 0

Monday
Tuesday
Wednesday
Thursday
Blink
Monday

That’s so true XD

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Jerry bought 680 square feet of wood flooring to liven up his retail store. He has 1/4 of the flooring left over. How many squar

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170

Step-by-step explanation:1/4 is just like dividing 4 so 680 divided by 4 equals 170

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What is 7 more than the sum of 6 and t please help

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Answer:

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Step-by-step explanation:

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1 year ago

Find the slope of the line going through the point (0,3) and (0,4)

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Answer:

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Step-by-step explanation:

To find the slope of the line between two points, use the slope formula $\frac{y_2-y_1}{x_2-x_1}$ . $x_1$ and $y_1$ represent the x and y values of one point the line passes through, and $x_2$ and $y_2$ represent the x and y values of another point the line also passes through. Therefore, use the x and y values of the points (0,3) and (0,4) to find the slope. Substitute them into the formula in the right order:

$\frac{(4)-(3)}{(0)-(0)} \\= \frac{4-3}{0-0}\\=\frac{1}{0}$

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3 years ago

Read 2 more answers

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irga5000 [103]

Answer:

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Step-by-step explanation:

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1 year ago

Researchers are studying the distribution of subscribers to a certain streaming service in different populations. From a random

Katen [24]

Answer:

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

Step-by-step explanation:

Given

$n = 200$

$x_1 = 34$ -- City C

$x_2 = 54$ --- City K

Required

Determine the 90% confidence interval

This is calculated using:

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

Calculating $\bar x$

$\bar x = \bar x_1 - \bar x_2$

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

$\bar x = \frac{34}{200} - \frac{54}{200}$

$\bar x = 0.17 - 0.27$

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:

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

$\sigma = \sqrt{(0.17)*(0.83) + (0.27)*(0.73)}$

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