Question

Ineed help help me please

Answer 1

The symbol ₁₂P₉ represents the permutations of 9 quantities out of 12.
By definition,

`_(12)P_(9) = (12!)/((12-9)!) = (12!)/(3!)`

From the calculator,
12! = 479,001,600
3! = 6

Therefore
₁₂P₉ = 479001600/6 = 79,833,600

Answer: 79,833,600