Question

will medal and fan

Answer 1

@Hannah_Waller

Answer 2

What the question?

Answer 3

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

Choose all answers that are correct.

A.
multiplication

B.
division

C.
addition

D.
subtraction

Answer 4

I'm going to assume you meant the set {-1, 0, 1}.

I think you may need to review what closed under an operation means.

1 + 1 = 2, which isn't in the set. Therefore we can get outside of the set by adding elements. When we can do this, it isn't closed under addition.

1 - (-1) = ?
1 / 0 = ?

As it turns out, of those four operations, the set is only closed under multiplication.