Question

Plz help!

Which of the following is a rational number?
square root 15 square root 16, square root 21, square root 22

square root 15
square root 16
square root 21
square root 22

(I already know it's not square root 15)

Answer 1

what's \(\sqrt{16}\)

Answer 2

it's 4

Answer 3

can that be written as a fraction?

Answer 4

yes

Answer 5

so it's rational

Answer 6

So it's square root 16?

Answer 7

yup

Answer 8

ok thanks!

Answer 9

yw ^_^