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3 years ago

How do I find surface area in a rectangular prisms

Mathematics

2 answers:

-Dominant- [34]3 years ago

7 0

Answer:to find any geomtric shape draw like a solid box, if you can faltten it out and add diagrams,and labels

but volume is diffrent

Step-by-step explanation:

if helpful can you mark me brainest or give me a thanks

taurus [48]3 years ago

4 0

Here is an example or you can just fold it out.

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Simple Math!! 2581 ÷ 21

lilavasa [31]

Answer:

$122\frac{19}{21}$ or $122.904$

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What are the solutions of x²-4x+5=0?<br><br>

iragen [17]

Answer:

x=2+i, x=2-i

Step-by-step explanation:

x^2-4x+5=0

Apply the quadratic formula.

4 0

3 years ago

You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on con

AlladinOne [14]

Using the z-distribution, a sample size of 180 is needed for the estimate.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

$\overline{x} \pm z\frac{\sigma}{\sqrt{n}}$

The margin of error is given by:

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

In which:

$\overline{x}$ is the sample mean.

z is the critical value.

n is the sample size.

$\sigma$ is the standard deviation for the population.

In this problem, we have a 98% confidence level, hence $\alpha = 0.98$ , z is the value of Z that has a p-value of $\frac{1+0.98}{2} = 0.99$ , so the critical value is z = 2.327.

The population standard deviation is of $\sigma = 23$ , and to find the sample size, we have to solve for n when M = 4.

Hence:

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

$4 = 2.327\frac{23}{\sqrt{n}}$

$4\sqrt{n} = 2.327 \times 23$

$\sqrt{n} = \frac{2.327 \times 23}{4}$

$(\sqrt{n}) = \left(\frac{2.327 \times 23}{4}\right)^2$

n = 179.03.

Rounding up, as a sample size of 179 would result in an error slightly above 4, a sample of 180 is needed.

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

#SPJ1

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2 years ago

______________ is the only operation performed in distributive property.<br> ? Help!

valentina_108 [34]

Answer:distributing is the only operation performed in distributive property.

Step-by-step explanation:

4 0

3 years ago

I will give Brainliest its maths and I need help on a b and c

JulsSmile [24]

Answer:

${5}^{3} \times {5}^{x} = {5}^{7} \\ 3 + x = 7 \\ x = 4$

$( {q}^{2} )^{y} = {q}^{6} \\ 2y = 6 \\ y = 3$

${1000}^{m} \div {100}^{n} = {10}^{z} \\ \frac{1000 ^{m} }{ {100}^{n} } = {10}^{z} \\ \\ {10}^{m - n} = {10}^{z}$

Can I have the brainliest please?

4 0

3 years ago

Read 2 more answers