Answer:
[tex]P(9,3) *P(5,4)[/tex]
And if we use the permutation formula given by:
[tex] nPx = \frac{n!}{(n-x)!}[/tex]
And replacing we got:
[tex] \frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520[/tex]
Step-by-step explanation:
For this problem we want to find the following expressionÑ
[tex]P(9,3) *P(5,4)[/tex]
And if we use the permutation formula given by:
[tex] nPx = \frac{n!}{(n-x)!}[/tex]
And replacing we got:
[tex] \frac{9!}{6!} \frac{5!}{4!}= 504*5 = 2520[/tex]