Answer:
11,800 different four letter permutations can be formed using four letters out of the first 12 in the alphabet
Step-by-step explanation:
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
In this question:
Permutations of four letters from a set of 12 letters. So
11,800 different four letter permutations can be formed using four letters out of the first 12 in the alphabet
This is a quadratic function that can also be expressed as -6x^2 - 24x - 34.
You could also graph this using the vertex of (-2, -10)
76% is greater because as a fraction is 0.76 which is greater than 0.67
Breath.
The faster you run its harder to catch your breath.