Respuesta :

hookahvic

Answer:

The square root of 18 is an irrational number because it cannot be expressed as a fraction.

abzinser

Answer:

Irrational

Step-by-step explanation:

According to the theorem, it follows that √18 is either an integer or an irrational number. Because it is not an integer for 18 is not a perfect square, i.e. 18 is not the square of an integer, it is irrational.