Question

Classify each number below as a rational number or an irrational number.

Answer 1

15pi (irrational), -2
`√(7)` (rational), -77.33 (rational), -
`√(9)` (rational), -39.93 (irrational)

Explanation:

15pi - irrational because remember pi is irrational.

-2 square root 7 - rational because it gives a terminating decimal.

-77.33 - rational, as it gives a terminating decimal.

-39.93 - irrational as the line above it, means it never ends.