Answer:
As square root of 9 can be written in the required form for being a rational number, so it is a rational number
Step-by-step explanation:
First of all we'll define rational numbers.
A number that can be written in the form p/q where p and q are integers and q≠0 is called a rational number.
Now we have to check if [tex]\sqrt{9}[/tex] is rational or not, we will check if it can be written in the form p/q
[tex]\sqrt{9} => \frac{\sqrt{9}}{1} => \frac{3}{1}[/tex]
As square root of 9 can be written in the required form for being a rational number, so it is a rational number