Answer:
npr= n! /(n-r) !
nCr= =(n r) = n! /r!(n-r)1
Step-by-step explanation:
Answer: 8/3
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given
4 and 5
Required
Determine the halfway
This is calculated as:


Remove bracket


Answer:
hi
Step-by-step explanation:
but that was no a question but thanks
Answer:
None of them are correct i believe
Step-by-step explanation:
its sideways lol