162k views
8 votes
Felix chose 3 integers between -10 and 10 at random. He chose the three integers listed below.

-1, 8, 4

Which integer does Felix need to choose next so that the product of all
four numbers chosen is 64?

[A] 2
[B] -2
[C] -1
[D] 4

1 Answer

4 votes

Answer: -2

Step-by-step explanation: The answer is -2 because -1 x 8 = -8, and -8 x 4 = -32. Because multiplying two negatives cancels out and becomes positive, we can apply this same principle and figure out that -32 x -2 would give us positive 64. Hope this helps!

User Eugene Goldberg
by
5.2k points