OpenStudy (anonymous):

need help on a question, it'll be down below

OpenStudy (anonymous):

Which of the following shows the correct value of the $\sqrt{175}$ please help

OpenStudy (anonymous):

We know that$25*7 = 175$

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

and that$\sqrt{25} = 5$

OpenStudy (anonymous):

So$\sqrt{175} = \sqrt{7*25} = 5\sqrt{7}$

OpenStudy (anonymous):

im confused now , im sorry.

OpenStudy (anonymous):

Ok do you understand that$\sqrt{175} = \sqrt{7*25}~?$

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

And you know that$\sqrt{25} = 5$

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

OpenStudy (anonymous):

So when we can seperate the 25 out like$\sqrt{25*7}$ we can take the 25 out of the radical as 5$5\sqrt{7}$

OpenStudy (anonymous):

ohh okay

OpenStudy (anonymous):

If you want to know the number like they asked you in your problem just plug $\sqrt{175}$ into your calculator next time

OpenStudy (anonymous):

i guess that would help huh. haha thank you

OpenStudy (anonymous):

Yeah, you'll use what I showed you eventually but you actually didnt need it for this question.

OpenStudy (anonymous):

I just didnt know the answer choices

OpenStudy (anonymous):

but when i put it in my calculator i got 13.228 and it kinda didnt show that answer

OpenStudy (anonymous):

@swagmaster47

OpenStudy (anonymous):

Yeah I know. 5sqrt(7) = 13.228

OpenStudy (anonymous):

Just use your calculator and dont think about too much of what I showed you, because I dont think you need to know it yet.

OpenStudy (anonymous):

okay