Question

Which equations show that the set of whole numbers is closed under multiplication?

Choose all answers that are correct.

A.
–1 • –1 = 1

B.
0 • –1 = 0

C.
0 • 2 = 0

D.
2 • 1 = 2

Answer 1

@Rainbow_dashie @Race100 @mylittleponyfriendshipismagic

Answer 2

@agent0smith @SolomonZelman

Answer 3

what does closed mean first?

Answer 4

In geometry, topology, and related branches of mathematics, a closed set is a set whose complement is an open set. In a topological space, a closed set can be defined as a set which contains all its limit points.

Answer 5

ok what you want to find is closed set right? first we need to look at possible answers and non possible answers

Answer 6

@SithsAndGiggles

Answer 7

ok

Answer 8

d?

Answer 9

C and D

Answer 10

@mylittleponyfriendshipismagic

Answer 11

@chosenmatt

Answer 12

@strawberryswing

Answer 13

okon your lesson does it show you any examples of a closed set?

Answer 14

r u still here

Answer 15

is it C & D

Answer 16

yes i believe so

Answer 17

good luck