I am having problems with permutations
what is 5P2 The answer I have is 20 am I wrong?
no, you are correct.
Thank you Steve
To calculate permutations, you need to use the formula:
nPm = n! / (n - m)!
In this case, you are trying to find 5P2. So, the formula becomes:
5P2 = 5! / (5 - 2)!
To solve this, first, let's calculate the factorial of 5:
5! = 5 x 4 x 3 x 2 x 1 = 120
Now, let's calculate the factorial of (5 - 2) = 3:
3! = 3 x 2 x 1 = 6
Now, you can substitute these values back into the original formula:
5P2 = 120 / 6 = 20
So, your answer of 20 is correct!