There are 5 letters in the word "prime"
Imagine we had 5 slots to fill. They are empty initially.
Slot 1 has 5 choices to pick from
Once we pick a letter, we have 4 choices left over for slot 2
Slot 3 will have 3 choices
Slot 4 will have 2 choices
Slot 5 will have 1 choice
We have this countdown: 5,4,3,2,1
which multiplies out to 5*4*3*2*1 = 120
There are 120 unique ways to arrange the letters. Order matters. Because order matters, this is a permutation.
I think it's equal to 1 because every expression with the exponent of zero is equal to 1, idk for sure though
Answer:
The second one
Step-by-step explanation:
Square root of 5 is about 2.24
5/2 is 2.5
2.71 is 2.71
2 3/4 is 2.75
2.24, 2.5, 2.71, 2.75
