![Permutation and Combination Trick | Permutations and combinations, Combination, Combination examples Permutation and Combination Trick | Permutations and combinations, Combination, Combination examples](https://i.pinimg.com/originals/f7/a9/26/f7a926143ec5210f26902892bf3eef72.png)
Permutation and Combination Trick | Permutations and combinations, Combination, Combination examples
![SOLVED: A combination locker uses a three number combination. Each number in the code must be from 00 to 39 inclusive; however no number can be repeated in the combination: For example; SOLVED: A combination locker uses a three number combination. Each number in the code must be from 00 to 39 inclusive; however no number can be repeated in the combination: For example;](https://cdn.numerade.com/ask_images/749ed68f0ac04ba9b6dda8e778d82bdf.jpg)
SOLVED: A combination locker uses a three number combination. Each number in the code must be from 00 to 39 inclusive; however no number can be repeated in the combination: For example;
![combinatorics - Equivalence of another formula for the number of $r$- combinations with repetition allowed - Mathematics Stack Exchange combinatorics - Equivalence of another formula for the number of $r$- combinations with repetition allowed - Mathematics Stack Exchange](https://i.stack.imgur.com/xexI5.png)
combinatorics - Equivalence of another formula for the number of $r$- combinations with repetition allowed - Mathematics Stack Exchange
![Combination of repeated-sprint training with different strength training methods: effects on performance – YLMSportScience Combination of repeated-sprint training with different strength training methods: effects on performance – YLMSportScience](https://ylmsportscience.files.wordpress.com/2014/09/343dd-strength2bvs2bcod2b262bsled.png)