Posted by keke on Thursday, May 29, 2014 at 8:04pm.
Which of the following numbers is irrational?
A 5/9
B 3.15
C /5
D 8.341
I THINK IT A

MATH  keke, Thursday, May 29, 2014 at 8:25pm
CAN SOMEBODY HELP ME

MATH  Steve, Friday, May 30, 2014 at 12:51pm
a rational number can be written as a fraction.
Any terminating or repeating decimal is also rational.
√5 is not rational. There is no fraction which is exactly equal to √5. The decimal value goes on forever and never repeats.
It is easy to prove that √5 is irrational, if you are interested. Just google proofs for √2 and follow the same logic you find there.

MATH  keke, Friday, May 30, 2014 at 1:22pm
so it c
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