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OpenStudy (anonymous):
Please help, I'll give you a medal<3 How many different ways can a coach select the captain and co-captain of a team from a group of 20 people.? A. 40 B.160 C.380 D. 420
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jimthompson5910 (jim_thompson5910):
use the same idea as shown on the last problem
jimthompson5910 (jim_thompson5910):
this time, order matters
OpenStudy (anonymous):
Is it C?
OpenStudy (anonymous):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
correct
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