Question

For which operations is the set {–1, 0, 1} closed?

Choose all answers that are correct.

A.
addition

B.
division

C.
multiplication

D.
subtraction

Answer 1

so

Answer 2

Try each operation on the elements and see what happens

Answer 3

b

Answer 4

going the guessing route?

Answer 5

what's 1+1?

Answer 6

Not Division because 1/0 is undefined

Not Addition because 1+1 = 2

Not Subtraction because 0-1= -1

Answer 7

@urbanmorgans So \(\dfrac{1}{0}\) exists in a set?

Answer 8

Ur last choice is?

Answer 9

-1 is in the set

Answer 10

\(\color{blue}{\text{Originally Posted by}}\) @Agl202
Not Subtraction because 0-1= -1
\(\color{blue}{\text{End of Quote}}\)

You mean -1-1, right?

Answer 11

-1 - 1 is not

Answer 12

Ya, sorry my bad

Answer 13

\[
1 - (-1) = 2
\]

Answer 14

this person doesn't seem to want to do the work to learn, though

Answer 15

c