Question

Classify the following real numbers as rational or irrational:

Answer 1

a. rational - It can be written as a fraction so it's rational.

b. rational - Simplified it equals to 9, a whole, therefore rational, number.

c. irrational - Even once simplified, it contains a square root, therefore it's irrational.

d. rational - It can be written as a fraction so it's rational.

e. irrational - It cannot be simplified from a square root, therefore it's irrational.