document.write( "Question 1173431: tudent was asked to form two-digit numbers using the following digits: 0,1,2,3,4,5,6,7,
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Algebra.Com's Answer #798676 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "9 numbers:  0,1,2,3,4,5,6,7,8
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document.write( " How many ways can Two-digit numbers be formed:
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document.write( " 1st digit  8 choices (not 0)
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document.write( " 2nd digit  9 choices  (all)
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document.write( "   8x9 = 72 the ways can Two-digit numbers be formed from the digits above
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document.write( "Repeating of digits are not allowed (11,22,33,44,55,66,77,88)
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document.write( "  72-8 = 64  the ways can Two-digit numbers be formed from the digits above,
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document.write( "Repeating of digits are not allowed
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document.write( "Note: 
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document.write( "Permutation method would work if 0 was not included with the digits given\r
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