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Mathematics 23 Online
OpenStudy (anonymous):

Find C D. C: {3, 6, 9, 12, 15, 18} D: {numbers divisible by 2 from 1 to 20} {2, 4, 6, 8, 10, 12, 14, 16, 18, 20} {6, 12, 18} {2, 3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20} { }

OpenStudy (4n1m0s1ty):

Whats between the C and D

OpenStudy (anonymous):

upside down u|dw:1341442526296:dw|

OpenStudy (anonymous):

It means intersection. Do you know what the intersection of two sets is?

OpenStudy (anonymous):

i just need the answer

OpenStudy (4n1m0s1ty):

Can't give you the answer. You need to figure it out for yourself.

OpenStudy (anonymous):

@based, this website is for help. We are not here to provide answers.

OpenStudy (anonymous):

um okay

OpenStudy (4n1m0s1ty):

So do you know what the intersection of two sets mean?

OpenStudy (anonymous):

No not really

OpenStudy (4n1m0s1ty):

Intersection = the common elements between two sets

OpenStudy (4n1m0s1ty):

So what are the common elements between C and D?

OpenStudy (anonymous):

okay so it would be the second one

OpenStudy (4n1m0s1ty):

Well lets think. It has to be elements in both sets. Is 2 in both set C and D?

OpenStudy (anonymous):

no

OpenStudy (4n1m0s1ty):

Oops I thought you were saying the first answer miss read your answer. The second one is right, it has the common elements between sets C and D.

OpenStudy (anonymous):

ok thats what I taught

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