Question

Which number is a rational number?

Answer 1

\[\sqrt{21};\sqrt{36};\sqrt{50};\sqrt{63}\]

Answer 2

i think \[\sqrt{36}\]

Answer 3

yes

Answer 4

because when you take the square root you get 6

Answer 5

vote please guys for my hard work http://www.signazon.com/contest/grad2014/lkkajqe5/

Answer 6

im trying to do math @katragaddasaichandra not vote sorry

Answer 7

@jjuden please!!

Answer 8

why

Answer 9

i want to win the competiton

Answer 10

even 1 vote

Answer 11

please

Answer 12

it takes only 20 sec

Answer 13

but i worked 5 mon

Answer 14

i like the silver metal one and i voted for u too

Answer 15

thnx