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baidentheodore617
21.10.2020 •
Mathematics
In how many different ways can a ski club consisting of 15 people selected a team for national championship? There are 4 spots available on the team going to national championship.
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Ответ:
Step-by-step explanation:
Combination has to selection. When selecting 4 people out of a pool of 15 people, this can be done as thus according to combination formuka:
15C4 = 15!/(15-4)!4!
15C4 = 15!/11!4!
15C4 = 15*14*13*12*11!/11!*4*3*2
15C4 = 15*14*13*12/24
15C4 = 32760/24
15C4 = 1365 different ways.
Hence this can be done in 1365 different ways
Ответ:
Here's link to the
cutt.ly/nz6VGda