Question

Which list contains only rational numbers?

Answer 1

Answer: Option A.

Step-by-step explanation:

Rationals numbers are defined as all those numbers which can be written as fractions, which have the form:

$\frac{a}{b}$

Being the numerator a and the denominator b integer numbers.

The numbers in the option A are rational numbers, because:

$-4=\frac{-4}{1}\\\\0=\frac{0}{1}\\\\\frac{1}{4}\\\\\sqrt{\frac{9}{4}}=\frac{3}{2}$

All these number can be written as fractions, therefore all of them are rational numbers.

Answer 2

Answer:

I think it's D

Step-by-step explanation: