vanesssa04
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if you’re good with permutations in math 30 please help and answer this easy question below real answers only

a soccer coach must choose 3 out of 10 players to kick tie breaking penalty shots. assuming the coach must designate the order of the 3 players, the number of different arrangements she has available is

a) 10!/7!

b) 10!/3!7!

c) 10!/3!

d) 10!/3!3!4!

Respuesta :

tramserran

Answer:  a) 10!/7!

Step-by-step explanation:

The "quick" way of answering this is: 10 × 9 × 8 = 720

If you are using the formula then you get:

[tex]\dfrac{10!}{(10-3)!}\quad =\large\boxed{\dfrac{10!}{7!}}\quad = 720[/tex]

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