Question

Which number is irrational? a)9.2727… b)√2 c) 5 x √9 d) -37/71

Answer 1

The answer is B.

Explanation:

Irrational number is a number that cannot be written in a fraction-form.

In the option above,

Option A,

`9.2727 = (92727)/(10000)`

Option B,

`√(2) = √(2)`

Option C,

`5x √(9) \\ = 5x * 3 \\ = 15x \\ = (15x)/(1)`

Option D,

`- (37)/(71) = - (37)/(71)`