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2. How many ways can a president and vice-president be selected in a class of five students? а. 20 С. 120 b. 24 d. 190 3. Participants 4, 5, 6, and 7 start a race. In how many different orders can they finish the race? a. 24 C. 49 b. 30 d. 81

2. How many ways can a president and vice-president be selected in a class of five students? а. 20 С. 120 b. 24 d. 190 3. Participants 4, 5, 6, and 7 start a race. In how many different orders can they finish the race? a. 24 C. 49 b. 30 d. 81

College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.6: Permutations And Combinations
Problem 52E
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Please answer 2 & 3 with solutions thank you

PROBLEM SOLVING INVOLVING PERMUTATIONS AND COMBINATIONS Encircle the letter of the correct answer.
Transcribed Image Text:PROBLEM SOLVING INVOLVING PERMUTATIONS AND COMBINATIONS Encircle the letter of the correct answer.
2. How many ways can a president and vice-president be selected in a class of five students? 20 С. 120 b. 24 d. 190 3. Participants 4, 5, 6, and 7 start a race. In how many different orders can they finish the race? а. 24 с. 49 b. 30 d. 81
Transcribed Image Text:2. How many ways can a president and vice-president be selected in a class of five students? 20 С. 120 b. 24 d. 190 3. Participants 4, 5, 6, and 7 start a race. In how many different orders can they finish the race? а. 24 с. 49 b. 30 d. 81
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