Question

can someone help me with a question?

Answer 1

identify the number as a rational or irrational.explain .

Answer 2

irrational because its a negative squareroot, you can't solve -√127

Answer 3

Rational. The negative sign is outside the sqrt. It is the same as saying -1 *sqrt(127) if it were inside the square root it would be irrational and and imaginary number.

Answer 4

It's an irrational number because sqrt(127) cannot be written as a fraction of integers. The number is real and irrational.
11^2 = 121
x^2 = 127
12^2 = 144
11 < x < 12, so
-12 < -sqrt(127) < -11