document.write( "Question 570672: Let A = {1, 2, 3, 4, 5, 6, 7}. How many subsets does A have? \n" ); document.write( "
Algebra.Com's Answer #367713 by stanbon(75887)\"\" \"About 
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Let A = {1, 2, 3, 4, 5, 6, 7}. How many subsets does A have?
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\n" ); document.write( "Each element of \"A\" is either in or not in any given subset.
\n" ); document.write( "So there are 2^7 = 128 subsets
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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