I'm stuck on this problem in math. x/5 + x/7 = 7/10 I know I have to find the LCD is 70 but I get 5/12 and it says I'm wrong

Solve for x<br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B2%7D" id="TexFormula1" title="\frac{x}{2}" alt="\frac{x}{2}"

g100num [7]

Answer:

$x = -\frac{14}{9}$

I hope this helps!

8 0

3 years ago

Read 2 more answers

If L = 3 inches, W = 2 inches, and H = 8 inches, what is the volume of the rectangular prism?

Gelneren [198K]

Answer:

48in^3

Step-by-step explanation:

volume of rectangular prism formula: L*W*H

lets plug in values for:

l=length(3)

w=width(2)

h=height(8)

so

3*2*8=48

48in^3

Hope this helps!

4 0

3 years ago

Use the drop-down menus to select answer.

N76 [4]

What is the question?

Use mentioned the directions, not the question itself.

7 0

3 years ago

true or false If x represents a random variable with mean 114 and standard deviation 40, then the standard deviation of the samp

Goshia [24]

Answer:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

Step-by-step explanation:

Let X the random variable of interest and we know that the true mean and deviation for this case are given by:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

6 0

3 years ago

Who can do this? Pls help

Arte-miy333 [17]

Answer:

15. 2

16. $\frac{27}{16}$ or 1.6875