If S = {students in Chemistry class} and subset B = {girls in Chemistry class}, what is B′?

{boys in Chemistry class}

{students in chemistry class}

{ }

{girls in chemistry class}

Question

If S = {students in Chemistry class} and subset B = {girls in Chemistry class}, what is B′?

 {boys in Chemistry class}

 {students in chemistry class}

 { }

 {girls in chemistry class}

anonymous · Answer

yea what i was thinking but then it asks for boys and not the change in girls

mikezack123 · Answer

B' means B prime, (everything thats NOT B)...

anonymous · Answer

i was just thinking that {boys in chemistry} meant we were looking for that

anonymous · Answer

B prime is a derivative tho, but it could have more then one meaning i guess

mikezack123 · Answer

what the hell is calculus im taking algebra lol

mertsj · Answer

B' is the complement of B which means everything in S that is not in B and so B' is the set of boys.

anonymous · Answer

ah i see

mikezack123 · Answer

so B' is the boys in the chem class. no?

mertsj · Answer

B' is the complement of B which means everything in S that is not in B and so B' is the set of boys.

anonymous · Answer

if B is girls then B prime would be boys

mertsj · Answer

It is NOT B prime.  It is B complement.

anonymous · Answer

ooohhhh my bad mertsj that make more sense now.

mikezack123 · Answer

Well pellet, im confused

mikezack123 · Answer

lol...pellet...

mikezack123 · Answer

but no kidding, iam more confused than i originally was

mikezack123 · Answer

B prime and B complement are the same thing, he can say B PRIME, and it will still mean the same thing as B complement, FYI @Mertsj

mikezack123 · Answer

@satellite73  please help... :)

anonymous · Answer

the compliment of B is everything in the universal set that is not in B
in this case the universal set is all people in chemistry class
B is all the girls  in it
the compliment of B is therefore all students in the chemistry class that are not girls

anonymous · Answer

often called "boys"

anonymous · Answer

lol

anonymous · Answer

you got a chemistry class i want a piece of your mind http://www.youtube.com/watch?v=wgu1nMo02SE

mikezack123 · Answer

Thanks so much! :)

anonymous · Answer

is the answer in the song i hope so

anonymous · Answer

gotta love elvis

mikezack123 · Answer

Lol fo sho'

anonymous · Answer

before my time don't know much :O

anonymous · Answer

the world began with new wave