Find the number of permutations of the first 9 letters of the alphabet, taking 4 letters at a time. 4280 3024 2512 1015

3024

Step-by-step explanation:

The combinations to find the number of permutations of the first 9 letters of the alphabets, taking 4 letters at one time, are given by:

Here in this case,

n = 9 (the total number of letters);and

k = 4 (the numbers of letters taken at one time)

Therefore, the number of permutations of the first 9 letters of the alphabets is 3024.

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

ab: 2 n83b8eb7ebi. 8e yen in