All categories

3 years ago

HELP WILL GIVE BRAINLIEST! RATE AND SAY THANKS!!

Mathematics

1 answer:

garri49 [273]3 years ago

5 0

Step-by-step explanation:

$Density \: of \: pyramid \\ \\ = \frac{mass}{volume} \\ \\ = \frac{50}{4 \times 8 \times 10} \\ \\ = \frac{5}{32} \\ \\ = 0.15625 \: gm \: {cm}^{ - 3} \\ \\ \approx \: 0.156 \: gm \: {cm}^{ - 3} \\$

You might be interested in

Construct a 99% confidence interval to estimate the population proportion with a sample proportion equal to 0.36 and a sample s

vivado [14]

Using the z-distribution, the 99% confidence interval to estimate the population proportion is: (0.2364, 0.4836).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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

In which:

$\pi$ is the sample proportion.

z is the critical value.

n is the sample size.

In this problem, we have a 99% confidence level, hence $\alpha = 0.99$ , z is the value of Z that has a p-value of $\frac{1+0.99}{2} = 0.995$ , so the critical value is z = 2.575.

The estimate and the sample size are given by:

$\pi = 0.36, n = 100$ .

Then the bounds of the interval are:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.36 - 2.575\sqrt{\frac{0.36(0.64)}{100}} = 0.2364$

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.36 + 2.575\sqrt{\frac{0.36(0.64)}{100}} = 0.4836$

The 99% confidence interval to estimate the population proportion is: (0.2364, 0.4836).

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

8 0

2 years ago

How do you estimate fractions who based number fractions, show work plz..

Liono4ka [1.6K]

First if there are 47/80 we have to estimate like 47 is 50 and 82 is 80

7 0

3 years ago

26)A $45.00 purchase in Iowa totals $47.70 with tax and a $35.00 purchase in tennessee totals$37.70 with tax which state has a g

babunello [35]

First, 47.7-45 to get price increase by tax for I which is 2.7. next divide 2.7 by 45 and multiply that by 100 to get a sales tax of 6%. Next 37.7-35 is once again 2.7. divide 2.7/35 and multiply times 100 to get a sales tax of 7.7 for T. T=7.7% and I=6% so since 7.7>6, therefore Tennessee has a greater sales tax then Iowa

6 0

3 years ago

ILL GIVE BRAINLEST

Lerok [7]

Answer:

its the first one brsinlest plz

Step-by-step explanation:

3 0

3 years ago

What is the unit rate

AVprozaik [17]

Could you resend the picture it isn't clear?

7 0

3 years ago