Question

Which number is irrational?

Answer 1

What do you think the answer is?

Hint: \(\Large\bf \sqrt{\frac{a}{b}} =\frac{\sqrt{a}}{\sqrt{b}}\)

Answer 2

A or D?

Answer 3

@Ms-Brains

Answer 4

Ok,

using my hint, can you tell me the following:

For A
\(\sqrt{81}=\)
\(\sqrt{2}=\)

For D
\(\sqrt{25}=\)
\(\sqrt{81}=\)

Which one has an irrational number?

Answer 5

I am thinking D Because 25 cannot be divided equally...

Answer 6

No, 5 * 5 = 25

so \(\sqrt{25} = 5\)

Answer 7

Oh, so A. I forgot about 2. It can only be divided by 1 and itself.

Answer 8

Exactly! Great job!

Answer 9

Thanks!

Answer 10

It was my pleasure!

Answer 11

Um.... I hate to be a jerk or anything, but we (all of us at OpenStudy) Are not allowed to help on quizzes. So as you see this might concern some of us http://prntscr.com/b0o7ya

Answer 12

@Ms-Brains its from k12.... everyone here posts questions from k12 -_- XD and actually its a lesson assessment which is technically k12's homework

Answer 13

Oh! Sorry, I didn't know. Its just that I have these everyday I am used to calling it an assessment, so I didn't catch that until now.

Answer 14

It's no problem. @PlzHelpWillDoWhatICan Just be careful, and don't do it again please. ^-^ I wouldn't want you in trouble or anything!

@MysticFury Yes, but do you get graded for it? And does that grade make you class grade higher? If yes, than I think that's cheating, and breaking school and openstudy policy.

Answer 15

@Ms-Brains well yes , but you also get graded on homework and your homework makes your class grade higher as well ....

Answer 16

Also, some people just ask for answers. I try and get help so I can solve other questions that are similar.

Answer 17

Guys. All I know is no helping on quizzes or homework, or anything you are graded on. We just help each other study here.