Question

Suppose x is a number between 2 and 27. For how many different values of x is (square root of x over 17) a rational number?

Answer 1

only those numbers that are perfect squares, 4, 9, 16, 25

Answer 2

Right. Because only those would come out to integers, the others would come out to radical whatever.

Answer 3

So that's four integers.

Answer 4

yes