Question

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

Answer 1

Answer:

The answer is B.

Step-by-step explanation:

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

In the option above,

Option A,

$9.2727 = \frac{92727}{10000}$

Option B,

$\sqrt{2} = \sqrt{2}$

Option C,

$5x \sqrt{9} \\ = 5x \times 3 \\ = 15x \\ = \frac{15x}{1}$

Option D,

$- \frac{37}{71} = - \frac{37}{71}$