Question

Help Me Plz!!!!!! THX!!!!!!!!!!

Answer 1

$\sqrt{5}$ is irrational

A rational number can be expressed in the form

$\frac{a}{b}$ where a, b ∈ Z ( integers )

$\frac{-9}{5}$ is in this form → rational

$\sqrt{5}$ cannot be expressed in this form → irrational

$\frac{7}{3}$ is in this form → rational

$\sqrt{9}$ = ± 3 and $\frac{3}{1}$, - $\frac{3}{1}$ → rational