4 years ago

HELP ON TIMER!!!

Mathematics

1 answer:

Law Incorporation [45]4 years ago

4 0

I’d say the second one, the fourth one and the fifth one.

Hope it works :)

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What is the answer for 2(×-2)+×=5 <br>

Feliz [49]

Answer:

Step-by-step explanation:

5 - 2 = 3

3 x 2 = 6

6 + 5 = 11

have a nice day and mark me brainliest! :)

6 0

3 years ago

In order to estimate the average time spent per student on the computer terminals at a local university, data were collected for

tatuchka [14]

Answer:

With a .95 probability, the margin of error is = 0.392

Step-by-step explanation:

Given -

In order to estimate the average time spent per student on the computer terminals at a local university, data were collected for a sample of 81 business students over a one-week period.

Sample size ( n ) =81

Standard deviation $(\sigma )$ = 1.8 hours

$\alpha$ = 1 -.95 =.05

$Z_{\frac{\alpha }{2}}$ = $Z_{\frac{.05 }{2}}$ = 1.96 (Using Z table)

With a .95 probability, the margin of error is

Margin of error = $Z_{\frac{\alpha }{2}}\frac{\sigma }{\sqrt{n}}$

= $Z_{\frac{.05 }{2}} \frac{1.8 }{\sqrt{81}}$

= $1.96\times 0.2$

Margin of error = 0.392

8 0

3 years ago

Solve for x.... 10 points

mariarad [96]

The answer is b because i just solves it

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3 years ago

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kodGreya [7K]

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3 years ago

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Determine the slope of the line of the two given points:<br><br> (6, 4), (15, 12)

Vinil7 [7]

Answer: 1.3125

Step-by-step explanation: Rise over run so 21/16, which if you open up your calculator you can divide 21 by 16 and your answer is 1.3125. Have a great day and message me with any more questions!

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3 years ago