Question

Identify the number as rational or irrational.

Answer 1

\[-\sqrt{127}\]

Answer 2

depends only on whether 127 is a perfect square or not

Answer 3

I would say that it is rational but I cant explain why.

Answer 4

you would be wrong
unless \(a\) is a perfect square, like say 25 or 49, then \(\sqrt{a}\) is irrational

Answer 5

Okay, thanks