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3 years ago

What is square root 30 in simplified form?

Mathematics

2 answers:

jonny [76]3 years ago

6 0

It would be the last answer, you can't simplify

icang [17]3 years ago

4 0

The square root of 30 can’t be simplified. The correct answer would be (D).

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For each of 3 years, the table above gives the number of different routes a runner ran, the number of runs she ran, and the tota

Ksju [112]

No way i can answer this impossible

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3 years ago

The standard deviation of the weights of elephants is known to be approximately 15 pounds. We wish to construct a 95% confidence

JulsSmile [24]

Answer:

The 95% confidence interval for the population mean weight of newborn elephants is between 242.12 pounds and 245.88 pounds.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96*\frac{15}{244} = 1.88$

The lower end of the interval is the sample mean subtracted by M. So it is 244 - 1.88 = 242.12 pounds.

The upper end of the interval is the sample mean added to M. So it is 244 + 1.88 = 245.88 pounds

The 95% confidence interval for the population mean weight of newborn elephants is between 242.12 pounds and 245.88 pounds.

5 0

4 years ago

If a table seats 7, what is the least number of tables needed to seat 155 people

Fynjy0 [20]

23 is the minimum because 155 does not go into evenly and you have to have enough room for everybody, and make sure not to leave anybody out. 155 divided by 7 is 22.1428571429, you have to round it up to 23 so that everybody has a seat. Hope it helps!!

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4 years ago

Name all angles congruent to angle 8

Law Incorporation [45]

There should be 3 more of them.

6 vertically opposite
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3 years ago

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Step-by-step explanation:

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4 years ago

Read 2 more answers