Question

Which is a rational number?

A. 3.1 repeating
B. pi
C. √2
D. √3

Answer 1

Rational numbers are numbers that can be written as simple fractions.

Answer 2

So what do you think the answer is?

Answer 3

i think its c

Answer 4

So it has to be C or D
right?

Answer 5

@XsanayX Don't give answers, it's against the code of conduct.

Answer 6

Actually..it's none of those.

Answer 7

I think 3.1 since I can write it as a fraction, namely:
\[3.1=\frac{ 31 }{ 10 }\]
other numbers can not be expressed by a fraction, in other words can not exist two integer numbers, say m and n such that:
\[\frac{ m }{ n }=\pi\]
or
\[\frac{ m }{ n }=\sqrt{2}\]
or:
\[\frac{ m }{ n }=\sqrt{3}\]

Answer 8

@Michele_Laino You're not supposed to give answers..we're here to guide the asker to a solution so that the asker may get it on their own.

Answer 9

Plus it's not 3.1, it's \(3. \overline{1}\)

Answer 10

Which means..you don't give the answer at all..no matter if you give an explanation or not.

Answer 11

ok! you are right! @iGreen
Please @Vivid my answer is incorrect. Your correct answer is the one that @iGreen gave you before, namely none of your numbers that you provided is a rational number

Answer 12

please, the right explanation is Always a benefit @iGreen

Answer 13

oops...is always...

Answer 14

I'm very sorry for my incorrect answer @Vivid

Answer 15

Well..your answer is wrong because '3.1' isn't even a choice..but however \(3. \overline{1}\) was the correct answer..and he already walked off with that choice.

Answer 16

Yes..but the problem is the asker could just take your answer and not read your explanation at all..

Answer 17

yes! the correct answer is C
thanks for your advice @iGreen