math Help???

if S is the universal set and A and b are subsets of S, with n(s)=135, n(A)=72, n(AuB)=85, and n(AnB)=14, find the following:

n(A’) and n(B)

Top 2 Answers

A few days ago

Anonymous

Favorite Answer

You can do it yourself. Here’s how.

N(A’) + N(A) = N(S), because, in the Universe, everything is either a member of A, or of A’, but not both, just as everything is either alive or not alive, but not both. Thus, N(A’) + 72 = 135. Take it from there.

And N(A) + N(B) = N(A u B) + N(A n B), because if you add N(A) and N(B), you count the intersection twice, including the union, and the right-hand-side does the same thing. So 72 + N(B) = 85 + 14, or N(B) = ?

Good luck.

A few days ago

haley

n(B)=13

n(A’)=(dont know)

Can Anyone Give Me A Meaningful Sentence For Adamant?

Why do farmers need to know about soil.?

What would the additive and multiplicative inverse of 2 be and how do you solve this?

SOS, using hte puzzle that you just solved explain how this can prove the pythagorean theorem, using algebra 1

what team won the super bowl game held at the superdome in 1997?

Density Problem Help?

Word problem?

I need to find an argument, on a news paper article can someone help me?

math Help???

math Help???

Related Posts