All categories

3 years ago

I need help time is running!!

Mathematics

1 answer:

Feliz [49]3 years ago

6 0

Answer: 1/3piex^2

3rd one down

Step-by-step explanation:

I’m not positive sorry if I’m wrong

You might be interested in

‼️‼️does anyone know this

andrew-mc [135]

Vertical angles are identical, so if X is 100 degrees, then Y is also 100 degrees.

half of 100 = 100 / 2 = 50 degrees.

6 0

4 years ago

Based on historical data, your manager believes that 26% of the company's orders come from first-time customers. A random sample

scoundrel [369]

Answer:

$\hat p \sim N( p, \sqrt{\frac{p (1-p)}{n}})$

And we can use the z score formula given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

And if we find the parameters we got:

$\mu_p = 0.26$

$\sigma_p = \sqrt{\frac{0.26(1-0.26)}{158}} = 0.0349$

And we can find the z score for the value of 0.4 and we got:

$z = \frac{0.4-0.26}{0.0349}= 4.0119$

And we can find this probability:

$P(z>4.0119) = 1-P(z$

And if we use the normal standard table or excel we got:

$P(z>4.0119) = 1-P(z$

Step-by-step explanation:

For this case we have the following info given:

$p = 0.26$ represent the proportion of the company's orders come from first-time customers

$n=158$ represent the sample size

And we want to find the following probability:

$p(\hat p >0.4)$

And we can use the normal approximation since we have the following two conditions:

1) np = 158*0.26 = 41.08>10

2) n(1-p) = 158*(1-0.26) = 116.92>10

And for this case the distribution for the sample proportion is given by:

$\hat p \sim N( p, \sqrt{\frac{p (1-p)}{n}})$

And we can use the z score formula given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

And if we find the parameters we got:

$\mu_p = 0.26$

$\sigma_p = \sqrt{\frac{0.26(1-0.26)}{158}} = 0.0349$

And we can find the z score for the value of 0.4 and we got:

$z = \frac{0.4-0.26}{0.0349}= 4.0119$

And we can find this probability:

$P(z>4.0119) = 1-P(z$

And if we use the normal standard table or excel we got:

$P(z>4.0119) = 1-P(z$

8 0

3 years ago

How does a function model the relationship between two quantities?

Talja [164]

It shows the relationship that exists between the 2 variables or numbers, the operations that are done to the x variable shows the major types of relationships that exist Between x and y.

As for all simple functions y = f(x).

7 0

4 years ago

Read 2 more answers

What number has the same value as 107 tens?

AysviL [449]

All you have to do is multiply them. 107 x 10=1070.
Your answer is 1070.

8 0

4 years ago

Read 2 more answers

Please show work<br>its due soon<br>i really need answers

Debora [2.8K]

Answer:

Step-by-step explanation:

from 5 to 20 its mutiplied by 4 and from 6 to 24 it mutiplied by 4, and last 10 ×4 is 40

5 0

4 years ago