Textbook QuestionHow many different ways can a director select 4 actors from a group of 20 actors to attend a workshop on performing in rock musicals?556views
Textbook QuestionA club with 15 members is to choose four officers–president, vice president, secretary, and treasurer. In how many ways can these offices be filled?668views
Textbook QuestionEvaluate the expression. *permutation notation* the number of permutations 9 things taken 5 at a time (sub 9)P(sub 5)498views1rank
Textbook QuestionEvaluate the expression. *permutation notation* the number of permutations 8 things taken 3 at a time (sub 8)P(sub 3)563views
Textbook QuestionIn Exercises 9–16, use the formula for nCr to evaluate each expression.9C5378views1rank