17. The science club members are to work in pairs on an experiment. a) If there are eight members present, in how many ways can the pairs be formed? [105] b) If Louis and Simone will not work together, how many different pairs can be formed? [90]

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 40SE: A family consisting of 2 parents and 3 children is to pose for a picture with 2 family members in...
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Answer to a) is 105

Answer to b) is 90

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17. The science club members are to work in pairs on an experiment.
a) If there are eight members present, in how many ways can the pairs be formed? [105]
b) If Louis and Simone will not work together, how many different pairs can be formed? [90]
Transcribed Image Text:17. The science club members are to work in pairs on an experiment. a) If there are eight members present, in how many ways can the pairs be formed? [105] b) If Louis and Simone will not work together, how many different pairs can be formed? [90]
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