Textbook Question
High Fives
b. If n mathletes shake hands with each other exactly once, what is the total number of handshakes?
High Fives
b. If n mathletes shake hands with each other exactly once, what is the total number of handshakes?
True or False? In Exercises 3-6, determine whether the statement is true or false. If it is false, rewrite it as a true statement.
3. A combination is an ordered arrangement of objects.