Answer:
90 arrangements
Step-by-step explanation:
Since there are no repititions of letters, there are unique 10 letters in total.
THe number of arrangements would be 2 permutation 10. We need the formula for permutation. That is:
Now, n = 10 [total] and r is 2, so we have:
So, there can be 90 arrangements
Answer: -270
Step-by-step explanation:
First, simplify the exponent
Then, distribute
Then, subtract(add a negative)
Hope it helps <3 :)
Answer:
yes plz ask the question what kind of help u need?
Answer:
its the first one
Step-by-step explanation: