1 Answer

Johannes P · Answer 1 · 2023-05-22T04:03:45+0000

Step-by-step explanation:

Rational numbers are numbers that can be written as a fraction of two whole numbers. Whole numbers are rational too.

Irrational numbers can't be expressed as a fraction.

For these numbers we have -2/5 which is already a fraction, therefore it's a rational number.

1.5 is can be written as 3/2 so it's rational.

$0.\bar{3}=(1)/(3)$

it's rational

$\sqrt[]{9}=3$

rational.

Square root of 7 doesn't have a whole result, so it's irrational

Answer:

The correct option is the third one:

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