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OpenStudy (anonymous):
How many ways can 7 horses finish a race? A. 7 B. 49 C. 5040 D. 823,543
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OpenStudy (anonymous):
Alright... this is just really confusing... I was thinking 7, but I wasn't sure. XD
OpenStudy (solomonzelman):
it is an nPr function 7 nPr 7
OpenStudy (solomonzelman):
permutations.
OpenStudy (anonymous):
7*6*5*4*3*2*1 These are Permutations problems..
OpenStudy (anonymous):
Oh, my gosh... Why hadn't I thought of that! XD I'll try that formula... thanks SolomonZelman.
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OpenStudy (anonymous):
Thanks to everyone who helped. :)
OpenStudy (solomonzelman):
http://www.calculatorsoup.com/calculators/discretemathematics/permutations.php
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