Mathematics 1228A/B Lecture 3: Chapter 1. Section 1.3

• School: Western University
• Department: Mathematics
• Course: Mathematics 1228A/B
• Professor: Vicki Olds

Document Summary

4 softdrinks which burger which drink m 3 hi 4. Of different small burger combo withfries is m m 2 3 4 12. Burger combo whichburger which drink what size what side of different burgercombo is 3 4 3 x 2 72 mi 3. Example 1. 5 a how many 3 digit codes can beformedfrom the digits l i i ii how many 3 digit codes cablormedlfromedi. gl through9. So if repetitionofdigits within the code is allowed. 3 decisions what digit in 1st position 10 choices whatdigit in 2nd position nochoices whatdigit in 3rdposition no choices of 3 digit codes with repetitionallowed is 10 10 10 103 1000. Ofways m x_x m m ofdecisions t ofchoices if repetition is not allowed. 3 decisions what digit in 1st position whatdigit in 2nd position whatdigit in 3rdposition. 8 choices of 3 digit codes without repetition is 10 9 8 720 i.