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Which of the following gives the number of permutations of n objects taken r at a time? n! n! D. (n-r) С. If P(n, 4) = 5040, what is the value of n? C. 8 A. B. n-rl rt(n-r)! A. 10 В. 9 D. 7

Which of the following gives the number of permutations of n objects taken r at a time? n! n! D. (n-r) С. If P(n, 4) = 5040, what is the value of n? C. 8 A. B. n-rl rt(n-r)! A. 10 В. 9 D. 7

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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4. Which of the following gives the number of permutations of n objects taken r at a time? n! A. " В. 1-rt C. rt(n-r)! n! D. (n-r) 5. If P(n, 4) = 5 040, what is the value of n? В. 9 A. 10 C. 8 D. 7
Transcribed Image Text:4. Which of the following gives the number of permutations of n objects taken r at a time? n! A. " В. 1-rt C. rt(n-r)! n! D. (n-r) 5. If P(n, 4) = 5 040, what is the value of n? В. 9 A. 10 C. 8 D. 7
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