## 96mertcank96 2 years ago given A = {2,3,5,7,8} and B = {3,5,8,9} What is A U B?

1. morganFREEDDOM

358 easy men

2. 96mertcank96

how did you get that answer?

3. morganFREEDDOM

comon sense?

4. 96mertcank96

yes but there must be a mathematical technique you used to get the answer

5. morganFREEDDOM

no just common sense

6. morganFREEDDOM

trust me men simple

7. morganFREEDDOM

why i think i chose them answers?

8. morganFREEDDOM

use comon sense look at hte numbers

9. morganFREEDDOM

and thats ur answer

10. 96mertcank96

yeah but i need to explain how i got the answer and i cant write used common sense????? that would make your statement invalid to me

11. morganFREEDDOM

u must fail at math if u have no common sense

12. 96mertcank96

i have no answer choice as 3,5,8 and thank you for being civilized and kindhearted -_-

13. inkyvoyd

Oh yeah, now you hav TWO ignorant people

14. inkyvoyd

A = {2,3,5,7,8} and B = {3,5,8,9}|dw:1364782794558:dw|

15. inkyvoyd

find what's in the center. That is what the Union symbol means.

16. 96mertcank96

3,5,and 8

17. 96mertcank96

yes but i have no answer choice like that whatsoever

18. inkyvoyd

that's cause that's the intersection.

19. inkyvoyd

My bad. The union is the concatenation of the two

20. 96mertcank96

yes wouldnt that be the middle?

21. inkyvoyd

A = {2,3,5,7,8} and B = {3,5,8,9} join the two sets together and take out repeats

22. 96mertcank96

3 and 5 then that would explain it...

23. 96mertcank96

and 8

24. inkyvoyd

No. {2,3,5,7,8}U{3,5,8} is {2,3,5,7,8}

25. inkyvoyd
26. inkyvoyd

I'm sorry what I said before is the intersection.

27. 96mertcank96

i have no answer choice like that i have {5} {5,8} {2,3,4,7,9} {2,3,4,5,7,8,9}

28. inkyvoyd
29. inkyvoyd

Read this article. You will findwhat you seek. My first venn diagram image and the answer obtained from that is incorrect. You must put the two sets together and take out repeats.

30. 96mertcank96

yes i know ive read it but my answer choices make that article invalid...

31. inkyvoyd

yeah, well can't help you there. The answer should be what agrees with that wiki article.

32. 96mertcank96

you can never trust Wiki...

33. inkyvoyd

Well, I'm as worthy of trust as wiki. The wiki math articles have yet to fail me. If you don't want to read wiki, just google union set theory and see if what you get disagrees.

34. 96mertcank96

yeah aint nobody got time for that so thank you for your help!

35. inkyvoyd

np :)