Question

HELP ASAP!!

Answer 1

1. A product code consists of selecting a number from the set {1, 2, 3, 4} followed by two letters, not necessarily distinct, from the set {A, B, C}. How many was can the code contain exactly two B's?



2. An Olympic race has 14 competitors. How many ways can the gold, silver, and bronze medals be awarded?

3. How many different 3 digit numbers more than 400 can be made from the following digits: 1, 2, 3, 4, 7, 8; if the digits cannot be repeated?

4. How many ways can the 9 letters of the word "sentences" be arranged?

5. A set S has 4 elements. How many subsets of S have at least 2 elements?

6. Suppose you have 7 dimes and 6 nickels in your pocket. How many ways can you reach into your pocket and select 2 coins that are both nickels?

7. Suppose you have 7 dimes and 6 nickels in your pocket. How many ways can you reach into your pocket and select 2 coins that are both dimes?

8. A drawer contains 6 purple socks and 3 orange socks. In how many ways can 3 socks be selected if the selection must contain both purple and orange socks?

Answer 2

oh um ^

Answer 3

nvm I solved it all myself, jeez all are no help, thanks for nothing