Mathematics, 29.01.2020 05:46 rfvelasco
Acertain system has two components. there are 6 different models of the first component and 10 different models of the second. any first component can be paired with any second component. a salesman must select 2 of the first component and 3 of the second to take on a sales call. how many different sets of components can the salesman take?
Answers: 2
![\dfrac{6!}{2!(6-2)!}\times\dfrac{10!}{3!(10-3)!}\ \ [\because\ ^nC_r=\dfrac{n!}{r!(n-r)!}]](/tpl/images/0480/5466/9531b.png)
  
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Acertain system has two components. there are 6 different models of the first component and 10 diffe...
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