As I went to pay for my coffee, I saw a sign saying, “Win free coffee for a year! Choose 4 different digits from 1 to 9 to create a 4-digit passcode. Enter your passcode online and if you match our secret passcode, you’ll win free coffee for a year!” How many different passcodes could I choose?
As I went to pay for my coffee, I saw a sign saying, “Win free coffee for a year! Choose 4 different digits from 1 to 9 to create a 4-digit passcode. Enter your passcode online and if you match our secret passcode, you’ll win free coffee for a year!” How many different passcodes could I choose?
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 53SE: Susan bought 20 plants to arrange along the border of her garden. How many distinct arrangements can...
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As I went to pay for my coffee, I saw a sign saying, “Win free coffee for a year! Choose 4 different digits from 1 to 9 to create a 4-digit passcode. Enter your passcode online and if you match our secret passcode, you’ll win free coffee for a year!” How many different passcodes could I choose?
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