Question

Which sets of numbers are closed under division?

Choose all answers that are correct.

A.
rational numbers

B.
integers

C.
{–1, 0, 1}

D.
whole numbers

Answer 1

@misty1212

Answer 2

I know for sure it is not c.

Answer 3

I am pretty sure it is B.

Answer 4

possibly A. but not D.

Answer 5

HI!!

Answer 6

Hi!!!

Answer 7

I believe you are correct

Answer 8

remember 0 is a rational numbe r

Answer 9

it is?

Answer 10

so not A

Answer 11

Rational numbers: numbers that can be written as a fraction. This includes terminating or repeating decimals. that is what my lesson says

Answer 12

also 0 is an integer

Answer 13

i knew that...

Answer 14

here is what you should be thinking
"if 0 is in the set, it is not closed under division, because you cannot divide by 0"

Answer 15

true

Answer 16

so which one of those sets does NOT have 0 in it

Answer 17

I have no idea since you said that 0 is a rational number

Answer 18

0 is a whole number, an integer, and in the set mentioned for C>

Answer 19

C.

Answer 20

sure you do
not rationals
not integers,
certainly not -1,0,1

Answer 21

but 0 is a whole number

Answer 22

i guess it depends on your definition
some start at 1

Answer 23

most start at 0, so this is a bit confusing

Answer 24

It would be a natural number but that isn't an option

Answer 25

i would go with that, if there is not other option
"whole number" is not standard terminology anyways, precisely because of this confusion

Answer 26

so D.?

Answer 27

if there is no "none of the above" choice, go with D

Answer 28

ok

Answer 29

thanks