Question

The set {-1,0,1} is not closed under which operation?

Answer 1

you got any idea what this means?

Answer 2

Not really, this is completely new to me.

Answer 3

that is what thought
closed under addition for example would mean if you add any two of those you get another one of those

Answer 4

that is not true, since \(1+1=2\) and \(2\) is not in your set

Answer 5

it also not closed under multiplication since \(1\div 0\) is not a number

Answer 6

DIvision or subtraction then?

Answer 7

addition, not closed
division, not closed
subtraction, not close since \(-1-1=-2\)

Answer 8

it is closed under multiplication though

Answer 9

Multiplication
Subtraction
Division
all of the above
is what I have for answers

Answer 10

hmm the last two, but that is not a choice
it is closed under multiplication, not subtraction or division

Answer 11

Oh no..

Answer 12

certainly it is not closed under division because you cannot ever divide by zero
but it is also not closed under subtraction
what is this, some FLVS question?

Answer 13

Its a stupid question. thats what it is lol Which one would you choose?

Answer 14

i guess i would choose "division" but it really says "not closed" right?

Answer 15

if you multiply any two of those you get another one of those for sure

Answer 16

It does say not closed!

Answer 17

so it is closed under multiplication
don't choose "all of the above"

Answer 18

ok pick division i guess and write them and tell them it is a mistake
on line class?

Answer 19

Yeah! I'll tell them!

Answer 20

what system?

Answer 21

Could you help me with one more?

Answer 22

sure i can try

Answer 23

wava k12

Answer 24

i thought they new better in washington