Answer:
Step-by-step explanation:
8.47 repeating is not an irrational number. An irrational number is a type of real number that d cannot be expressed as a simple fraction.
Irrational; 4 is not a perfect cube so its cube root is irrational. Rational; 400 is a perfect square so its root is an integer.
The following diagram shows that all whole numbers are integers, and all integers are rational numbers. Numbers that are not rational are called irrational.