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Winnnie has 7 soccer trophies she wants to display in a array. how many different arrays can she use
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Dec 7, 2017
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Winnnie has 7 soccer trophies she wants to display in a array. how many different arrays can she use
Mathematics
high-school
George Sun
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She has 7 soccer trophies.
So lets assume she wants to display it in a straight line:
The 1st has 7 ways
The 2nd has 6 ways
The 3rd has 5 ways
The 4th has 4 ways
until the last.
Total = 7 × 6 ×5 × 4 × 3 × 2 × 1 = 5040 ways.
Cvsguimaraes
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Dec 13, 2017
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Cvsguimaraes
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