If C = {integers divisible by 2 from 1 to 25} and D = {integers divisible by 6 from 1 to 30}, what is C ∩ D?
a. { }
b. {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 30}
c.{6, 12, 18, 24, 30}
d.{6, 12, 18, 24}

Question

If C = {integers divisible by 2 from 1 to 25} and D = {integers divisible by 6 from 1 to 30}, what is C ∩ D?
a. { }
b. {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 30}
c.{6, 12, 18, 24, 30}
d.{6, 12, 18, 24}

anonymous · Answer

What do you think it is? Do you understand the question?

anonymous · Answer

no @zordoloom

anonymous · Answer

okay, just pick the set of numbers that is both divisible by 6 and by 2. let me know what you get.

anonymous · Answer

@zordoloom im not sure im new to this.... :/

anonymous · Answer

Okay, it would be D

anonymous · Answer

@zordoloom  okay thanks, i would really like to learn how to do this though!

anonymous · Answer

Well, there is two things you have to recognize the union sign and intersection sign

anonymous · Answer

The union sign, which looks like a u and the intersection sign which looks like an A, without the cross. The intersection means it includes values from both sets, and the intersection mean that it chooses the values that go from min to max, and they don't have to be in both sets of numbers.