Question

is the following number rational or irrational?\\(\sqrt{99}\\)\
choose 1 answer:\
a rational\
b irrational

Explanation:

Step1: Simplify the square root

$\sqrt{99} = \sqrt{9 \times 11} = 3\sqrt{11}$

Step2: Classify the simplified number

$\sqrt{11}$ is irrational; multiplying by 3 (rational) keeps it irrational.

Answer:

B. Irrational