Question

Classify the following numbers as rational or irrational. (2/5√7)^2​

Answer 1

Answer:

it's an irrational because any number is whether(÷/×/+/-) to irrational , the result is always an irrational.

Answer 2

Answer:

Rational. As fractions, decimals, integers, natural and whole numbers all are rational numbers.

Step-by-step explanation:

$(\frac{2}{5} \sqrt{7})^{2} \\\\= (\frac{2}{5})^{2} * (\sqrt{7})^{2}\\\\= \frac{4}{25} * 7\\\\= \frac{28}{25}$