Question

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

Answer 1

yes

Answer 2

@undeadknight26

Answer 3

@LynFran was just doin this ._.
I don't steal questions.

Answer 4

what

Answer 5

well, compare 15, 16, 21, and 22

only one of them is a perfect square (the square of an integer), can you tell me which one it is?

Answer 6

no

Answer 7

thats why i need help

Answer 8

can you write the prime factorizations of the number 15,16,21, 22
this I think will help us tell you what a perfect square is

Answer 9

the whatey-who-know

Answer 10

what does that mean

Answer 11

are you saying you don't know what a prime factorization is either?

Answer 12

it is fine if you don't but I need you to tell me that

Answer 13

3 and 5 are prime
the prime factorization of 15 is 3(5)
can you write the prime factorization of 16?

Answer 14

@undeadknight26

Answer 15

can you just tell me the answer plz @freckles

Answer 16

Sorry m8 I can't explain it better than Frecks or Lyn...I ain't good at explaining.

Answer 17

that's okay I will go help someone else

Answer 18

no plz

Answer 19

i need to find the prime 16

Answer 20

so 8(2)

Answer 21

@freckles