2. An auditorium has 20 seats in the first row, 24 seats in the second row, 28 seats in the third row, and so on. There are a total of 30 rows in the auditorium. How many people can be seated in the auditorium? Use the formula S₂ = 7/7 (ª₁ + ªn). ¹1 a₁ = n= d =
2. An auditorium has 20 seats in the first row, 24 seats in the second row, 28 seats in the third row, and so on. There are a total of 30 rows in the auditorium. How many people can be seated in the auditorium? Use the formula S₂ = 7/7 (ª₁ + ªn). ¹1 a₁ = n= d =
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.1: Counting
Problem 3E: The number of ways of choosing r objects from n objects is called the number of ___________ of n...
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