Question 6 10 pts A combination lock has a password that is three numbers between 0 and 99, Assuming the same number cant be used more than once in a password, how many potential passwords are there? O 1001/3 100!/97 D Question 7 10 pts A coin is flipped six times, producing either heads or tails. How many possible outcomes contain two or fewer heads? D Question 8 10 pts How many bit strings of length 10 contain an equal number of Os and 1s? ? 10t/S! 210 DQuestion 9 10 pts How many ways are there to select five countries in the United Nations to serve on a council if two are selected from a block of 20 countries, and four are selected from a block of 40 countries? O 202 2018211*40364! O20u(12+40113641) Question 10 10 pts How many bit strings of length 10 contain exactly four 1s? O 1044! 10u64 O 26 O 1046