3 years ago

What is the expression in radical form?

Mathematics

1 answer:

valkas [14]3 years ago

3 0

I believe the answer is 50

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Butoxors [25]

Answer: $(21.541,\ 23.059)$

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : $n=240$ , which is a large sample , so we apply z-test .

Sample mean : $\overline{x}=22.3$

Standard deviation : $\sigma= 6$

Significance level : $\alpha=1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.960$

Now, a confidence interval at the 95% level of confidence will be :-

$22.3\pm(1.960)\dfrac{6}{\sqrt{240}}\\\\\approx22.3\pm0.759\\\\=(22.3-0.759,\ 22.3+0.759)\\\\=(21.541,\ 23.059)$

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The base of a triangle is seven less than twice its height. If the area of the triangle is 102 cm2, find the length of the base.

Shalnov [3]

Answer:

195

Step-by-step explanation:

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In a class⅗ of the children are going to special event If there are 30 children in the class,how many are going

irinina [24]

Answer:

Step-by-step explanation:

3/5 x 30

(3 times 30)divided by 5

= 18 children are going.

Hope this helps:-)

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you have one case of soap bars and there are 150 bars in a case you use 300 bars of soap per day how many cases do you need to o

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The Answer to your question is 14 cases for 7 days

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There are 4 cups in a quart and 60 seconds in a minute. So 4/120 cups per second or 1/30 cups per second.

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