The symbol ₁₂P₉ represents the permutations of 9 quantities out of 12.
By definition,
![_{12}P_{9} = \frac{12!}{(12-9)!} = \frac{12!}{3!}](https://tex.z-dn.net/?f=_%7B12%7DP_%7B9%7D%20%3D%20%20%5Cfrac%7B12%21%7D%7B%2812-9%29%21%7D%20%3D%20%5Cfrac%7B12%21%7D%7B3%21%7D%20)
From the calculator,
12! = 479,001,600
3! = 6
Therefore
₁₂P₉ = 479001600/6 = 79,833,600
Answer: 79,833,600
Answer:
3
Step-by-step explanation:
Answer: C 20
Explanation: Plug in 2 for k.
2^2 - (2-10) + 4(2) = 20
Yeah post the questions I'll see if I can answer them