Rani arrived at the library at 12:04 PM. She spent 52 minutes in the library before she left.
2 answers:
You might be interested in
Answer:
1,404,000 unique passwords are possible.
Step-by-step explanation:
The order in which the letters and the digits are is important(AB is a different password than BA), which means that the permutations formula is used to solve this question.
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:
2 digits from a set of 10(there are 10 possible digits, 0-9).
3 characters from a set of 26. So
1,404,000 unique passwords are possible.
I didn't really know whatnu were asking so i took a guess..sorey if i didn't help
