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3 years ago

6

Which numbers are irrational

2 answers:

shusha [124]3 years ago

8 0

Answer:

Pi

Step-by-step explanation:

Rzqust [24]3 years ago

3 0

Answer:

Hello there!

You didn't really give a list of numbers, but I got a photo that may help you!

Step-by-step explanation:

hope this helps!

(Maybe next time, for a smarter answer, you could add a list of numbers we could choose by) :)

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Pls help me right now

Irina-Kira [14]

Search the question on the internet and ask if which it is out of them both answers and there you go

6 0

3 years ago

Find the area of a rectangle whose length is 8 and breath is 3<br>

natulia [17]

Answer:
Area is 24

Explanation: times the length by the breath (width)

7 0

3 years ago

A2 + b2 = n2 because of the

Nataly_w [17]

Phytagorean Theorem i think

3 0

3 years ago

Read 2 more answers

Of the population of all fruit flies we wish to give a 90% confidence interval for the fraction which possess a gene which gives

maks197457 [2]

Answer:

The margin of error for the 90% confidence interval is of 0.038.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

To this end we have obtained a random sample of 400 fruit flies. We find that 280 of the flies in the sample possess the gene.

This means that $n = 400, \pi = \frac{280}{400} = 0.7$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

Give the margin of error for the 90% confidence interval.

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$M = 1.645\sqrt{\frac{0.7*0.3}{400}}$

$M = 0.038$

The margin of error for the 90% confidence interval is of 0.038.

8 0

3 years ago

C=2(y-k) solve for y

marshall27 [118]

Answer:

$\blue{y = \dfrac{C + 2k}{2}}$

Step-by-step explanation:

$C = 2(y - k)$

$C = 2y - 2k$

$C + 2k = 2y$

$\dfrac{C + 2k}{2} = y$

$y = \dfrac{C + 2k}{2}$

5 0

2 years ago