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4 years ago

Did anyone do the Algebra 1 interim assessment 2??? and can someone help me with it please!!!

Mathematics

2 answers:

vovangra [49]4 years ago

7 0

Use slader look up the book and see if it’s there

KATRIN_1 [288]4 years ago

3 0

For what school and just look up answers on brainly.

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Rewrite each of the following expressions without using absolute value bars.

Slav-nsk [51]

Answer:

A |x−4| if x>4

Step-by-step explanation:

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2 years ago

It is known that the population variance equals 484. With a .95 probability, the sample size that needs to be taken to estimate

Hitman42 [59]

Answer:

The minimum sample size is n = 75 so that the desired margin of error is 5 or less.

Step-by-step explanation:

We are given the following in the question:

Population variance = 484

Standard deviation =

$\sigma^2 = 484\\\sigma =\sqrt{484} = 22$

Confidence level = 0.95

Significance level = 0.05

Margin of error = 5

Formula:

Margin of error =

$E = z\times \dfrac{\sigma}{\sqrt{n}}\\\\n = (\dfrac{z\times \sigma}{E})^2$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get

$E\leq 5\\\\1.96\times \dfrac{22}{\sqrt{n}} \leq 5\\\\\sqrt{n} \geq 1.96\times \dfrac{22}{5}\\\\n \geq (1.96\times \dfrac{22}{5})^2\\\\n \geq 74.373$

Thus, the minimum sample size is n = 75 so that the desired margin of error is 5 or less.

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3 years ago

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Aleonysh [2.5K]

Answer:

k k hhi i i kjh hi hi pi i i hi hi kp i pi hj

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3 years ago

Read 2 more answers

I don’t know how to do this and my teacher doesn’t know how to teacher please help me

AnnyKZ [126]

Answer:

Yeah and i don't know how to answer that sorry

Step-by-step explanation:

you can't look it up some how?

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3 years ago

-2|0.25-0.5 |+2=<br> What is this answer

Anestetic [448]

1.5

...

−2∣−0.25∣+2

−2×0.25+2

−0.5+2

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3 years ago