Answer:
- P(5, 4) = 120
- P(6, 6) = 720
- P(8, r) = 40320; r = 7
- P(n, 3) = 3024; n = error (see notes below)
- P(9, r) = 504; r = 3
- C(5, 3) = 10
- C(5, 5) = 1
- C(10, 4) = 210
- C(12, 6) = 924
- C(8, 3) = 56
Step-by-step explanation:
In number 4, there is no answer if r is indeed 3. I think the given is not correct, and r should be 4. If it is P(n, 4) = 3024, then n = 9.
