29.) A
31.) A'
33.) A U B
35.) A' n B
37.) (A n B)'
39.) A' n B'

My answers

29.) 40
31.) 35
33.) 55
35.) 60
37.) 65
39.) 65



What you say? Its about sets and subsets

 

I haven't done that stuff since the 5th grade :eek4:

 

watch out

 

been a LONG time, but,
29 - 40
31 - 35
33 - 105
35 - 60
37 - 65
39 - 55

 

Explain 33 and 39 to me please....

 

33 - All of A (including 5) and All of B (including 5)
39 - All of A (not including 5) and All of B (not including 5)

 

And what do U an n mean?

My book is still on the way, so i can't look it up or else I would...fuck paying 150$ for a 50$ book

ie.. {1, 2} U {2, 3 , 4} or {1, 2} n {2, 3, 4}

 

I don't remember how to do those :/

EDIT: But I know how to do calculus and trig :doh: WTF :chuckles:

 

I still don't get how you got that..

All of A is 40 and all of B is 25 right?

 

29.) A = 40 (anything with A)

31.) A' = 60 (the tick mark means "not") http://en.wikipedia.org/wiki/Negation

33.) A U B = 60 (the union of A and B) http://en.wikipedia.org/wiki/Union_%28set_theory%29

35.) A' n B = 20 (the intersection of anything NOT A and B) http://en.wikipedia.org/wiki/Interse...8set_theory%29

37.) (A n B)' = 95 (not anything in the intersection of A and B)

39.) A' n B' = 40 (not A AND not B)

hope this helps