Question

Will medal and fan!!!!!!!!!!!!:D
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

They all are correct.

Answer 2

thats impossible! You have to choose at least 2 answers

Answer 3

@Kevinz

Answer 4

@Michele_Laino

Answer 5

The question asked about WHOLE Numbers. A and B is not using Whole numbers. It produces a Whole number but the set it not a whole numbers.

C and D is using Whole numbers and it produces a whole number. C and D is the answer

Answer 6

Thanks so much @MDoodler !

Answer 7

Sorry, I thought it was something else, im learning something similar at the time.

Answer 8

Here is a good link that explains

http://www.mathsisfun.com/sets/closure.html

Answer 9

thanks!