## xjaysiex 3 years ago Which of the following sets represents M∪N? {2, 5, 8} {4, 7} {3, 4, 6, 7, 9} {3, 6, 9} ill try to upload the pik also

1. xjaysiex

|dw:1353463658499:dw|

2. chaguanas

It means, it is in m and also in n

3. xjaysiex

ohh thank you,, that makes since,, wow i feel really dumb now haha

4. xjaysiex

wait so that means everything in the circles,, even in the middle right

5. chaguanas

|dw:1353463975333:dw|As an example, my drawing, the shaded part is in m only, it is not in n

6. xjaysiex

oh ok i think i understand,, so only 4 and 7 because they are the only ones in both

7. chaguanas

I think you're catching on.

8. xjaysiex

haha thank yu :) what dous the u symbol stand for btw

9. chaguanas

u is the universal set. It is everything, m, n, and in this case outside of m and n.

10. xjaysiex

alright,, but the answer is still 4,7 right im confused again

11. chaguanas

No need to be confused. You just asked about the universal set. You could ignore since it is not a part of the question. Have confidence. You already chose an answer, stand by it, and go to the next one.

12. xjaysiex

thank you :)

13. chaguanas

I blew that one, AUB means it is in A or B, so it should be 3, 4, 6, 7, 9