Access to the private web site
In order to gain access to the private web site, each person should have his or her own 6-digit password, where some digit is employed three times and the remaining three digits are distinct. How many such passwords are there?
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How does a function from A to B differ from an arbitrary relation from A to B?
A total of 100 students are taking history exam. Each student is required to write down an essay upon one of six possible topics. Determine the fewest possible number of students who could have chosen the topic selected by most students?
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Answer the question above by listing all possible selections in a table. Answer the question above by determining the coefficient of x^6 in a product of polynomials and/or power series
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For final exam in musical theater class, the three students john, kim and lisa are to present program of 10 songs, with john singing 4 of them and kim and lisa singing 3 each. In how many different orders can the program be presented? Please descr
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