SOLUTION: Determine whether {{{3sqrt(49)}}} is rational or irrational. My answer was irrational. Is this correct? Thanks.

Algebra ->  Square-cubic-other-roots -> SOLUTION: Determine whether {{{3sqrt(49)}}} is rational or irrational. My answer was irrational. Is this correct? Thanks.       Log On


   

Question 74657: Determine whether 3sqrt%2849%29 is rational or irrational.
My answer was irrational. Is this correct? Thanks.
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Determine whether 3sqrt%2849%29 is rational or irrational.
A rational number can be written as an equivalent fraction:
3%2A7%29
21
21%2F1
Therefore 3sqrt%2849%29 is rational.
Happy Calculating!!!!