Respuesta :

11 nCr 3  plugged in a calculator will equal 165 Combinations/Positions 

The number of ways can the first three positions of the order of the finish occur is 165 ways.

What is Combination?

A combination is a mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter.

Given: n=11 and r=3

Using Combinations,

[tex]^n{C}_r[/tex]= [tex]\frac{n!}{r!(n-r)!}[/tex]

     = 11 !/ 3!( 11-3)!

    = 11 ! /3! 8!

    = [tex]\frac{11*10*9*8!}{3*2* 8!}[/tex]

   = 11*10*9/ 3*2

   = 990/6

   = 165

Hence, In 165 ways the first three positions of the order of the finish occur.

Learn more about combination here:

https://brainly.com/question/2292539

#SPJ2