Answer:
Cr = 10
Step-by-step explanation:
To calculate combinations we use the nCr formula: nCr = n! / r! * (n - r)!, where n = number of items, and r = number of items being chosen at a time.
[tex]C(n,r)=[?][/tex]
[tex]C(n,r)=C(5,3)[/tex]
[tex]=\frac{5}{(3!(5-3)!)}[/tex]
[tex]=\frac{5!}{3!*2!}[/tex]
[tex]=10[/tex]
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