SOLUTION: the size of subsets of a set: If a given set has twelve elements, how many of its subsets have the given numbers of elements? a) at most two elements.

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Question 387009: the size of subsets of a set:
If a given set has twelve elements, how many of its subsets have the given numbers of elements?
a) at most two elements.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
the size of subsets of a set:
If a given set has twelve elements, how many of its subsets have the given numbers of elements?
a) at most two elements.
at most 0 elements: 1
at most 1 element: 12
at most 2 elements: 12C2 = 66
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# with at most 2 elements: 1+12+66 = 79
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cheers,
Stan H.