1. Students who attended a track and field meet were polled, and 75% of them said that track and field meets are more fun to att
1 answer:
You might be interested in
Answer:
4th option
Step-by-step explanation:
Given
-
← expand denominator using FOIL
= -
Since the denominators are common, then subtract the numerators
=
Answer:
a) 1,757,600 different plates possible.
b) 1,404,000 different plates possible.
Step-by-step explanation:
The permutations formula is important 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:
(a) can be repeated:
There are 3 letters, each one with 26 possible outcomes.
2 digits, each with 10 possible outcomes
So
T = 26*26*26*10*10 = 1757600
1,757,600 different plates possible.
(b) cannot be repeated:
Here the permutations formula is used.
Three letters, from a set of 26.
Two digits, from a set of 10. So
1,404,000 different plates possible.