All categories

2 years ago

What is 5+ (-5) ?????

Mathematics

2 answers:

jasenka [17]2 years ago

5 0

Answer:0

Step-by-step explanation:

5-5= 0

The positive sign times the negative sign equals to a negative sign

Rzqust [24]2 years ago

4 0

The answer is zero.

You might be interested in

How many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of athletic footwear? We want 98

Irina18 [472]

Answer:

$n=(\frac{2.33(1400)}{400})^2 =66.50 \approx 67$

So the answer for this case would be n=67 rounded up

Step-by-step explanation:

Information given

$\bar X$ represent the sample mean for the sample

$\mu$ population mean

$\sigma=1400$ represent the sample standard deviation

n represent the sample size

Solution to the problem

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =400 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 98% of confidence interval now can be founded using the normal distribution. And the critical value would be $z_{\alpha/2}=2.33$ , replacing into formula (b) we got:

$n=(\frac{2.33(1400)}{400})^2 =66.50 \approx 67$

So the answer for this case would be n=67 rounded up

8 0

3 years ago

5/8% of 520 - is it 325 of 3.25?

Ksju [112]

Answer:

wait it is 325 of 3.25

Step-by-step explanation:

I can't tell if your asking for just one number, which would be 3.25...

4 0

2 years ago

Find the missing length indicated.

fredd [130]

The answer to this is 36.

4 0

3 years ago

Hi, I don't need this really fast, but I really don't understand how to do surface area and lateral surface area with rectangula

ipn [44]

Answer:

The surface area is the area that describes the material that will be used to cover a geometric solid. When we determine the surface areas of a geometric solid we take the sum of the area for each geometric form within the solid.

3 0

2 years ago

Read 2 more answers

A wall is 20 inches thick. 6 inches is concrete, 9 inches is brick, and 5 inches is limestone. What fraction of the wall is c

Citrus2011 [14]

Answer:

30%

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers