SOLUTION: Which of the following numbers is irrational? A) sqrt 2 * sqrt 8 B) 4 sqrt 2 * sqrt 2 C) sqrt 8/sqrt 2 D) 4 sqrt 2 I hope that I wrote those correctly...I know that 2 is i

Algebra ->  Radicals -> SOLUTION: Which of the following numbers is irrational? A) sqrt 2 * sqrt 8 B) 4 sqrt 2 * sqrt 2 C) sqrt 8/sqrt 2 D) 4 sqrt 2 I hope that I wrote those correctly...I know that 2 is i      Log On


   

Question 28148: Which of the following numbers is irrational?
A) sqrt 2 * sqrt 8
B) 4 sqrt 2 * sqrt 2
C) sqrt 8/sqrt 2
D) 4 sqrt 2
I hope that I wrote those correctly...I know that 2 is irrational but it appears in every question? I beleive 8 is irrational as well? So i think it could be A?
Thank you for your assistance!
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%282%29%2Asqrt%288%29 is sqrt%2816%29 which is 4

+sqrt%282%29%2Asqrt%282%29 is sqrt%284%29 which is 2

+%28sqrt%288%29%29%2F%28sqrt%282%29%29 is sqrt%284%29 which is 2

+sqrt%282%29 has nothing done to it..so this is the irrational one still

jon.