anonymous
  • anonymous
Suppose n(X) = 28 and n(Y) = 11.(a) What is the maximum number of elements X ∪ Y can have? (b) What is the minimum number of elements X ∪ Y can have?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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jim_thompson5910
  • jim_thompson5910
hint: \[\Large n(X \cup Y) = n(X) + n(Y) - n(X \cap Y)\]
dan815
  • dan815
|dw:1443153657372:dw|
anonymous
  • anonymous
A would be 39 I just can't figure out what B is or how to get it

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jim_thompson5910
  • jim_thompson5910
`I just can't figure out what B is or how to get it` look closely at dan815's drawing
jim_thompson5910
  • jim_thompson5910
one of those shows X U Y maxed out one of them shows X U Y at it smallest
dan815
  • dan815
|dw:1443154314057:dw|
dan815
  • dan815
think about overlapping circles as them sharing area, when they share the most area, then they have the least total area, when they share the least area, they have the maximum area right

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