Twenty batteries will be put on the display. The types of batteries are: AAA, AA, C, D, and 9-volt. a. How many ways can we choose the twenty batteries? b. How many ways can we choose the twenty batteries but be sure that at least four batteries that are are 9-volt batteries? c. How many ways can we choose the twenty batteries but have no more than two batteries that are 9-volt batteries?
Twenty batteries will be put on the display. The types of batteries are: AAA, AA, C, D, and 9-volt. a. How many ways can we choose the twenty batteries? b. How many ways can we choose the twenty batteries but be sure that at least four batteries that are are 9-volt batteries? c. How many ways can we choose the twenty batteries but have no more than two batteries that are 9-volt batteries?
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 4T: Over the past year, John has purchased 30 books. In how many ways can he pick four of these books...
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Twenty batteries will be put on the display. The types of batteries are: AAA, AA, C, D, and 9-volt.
a. How many ways can we choose the twenty batteries?
b. How many ways can we choose the twenty batteries but be sure that at least four
batteries that are are 9-volt batteries?
c. How many ways can we choose the twenty batteries but have no more than two batteries that are 9-volt batteries?
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