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3. In a company telephone tree, each employee is to phone three other employees. In the first round, three people are called. Each person phones three other people, and so on. a. During which round are 729 employees called? Show your work.

3. In a company telephone tree, each employee is to phone three other employees. In the first round, three people are called. Each person phones three other people, and so on. a. During which round are 729 employees called? Show your work.

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
Problem 9ECP: In three-card poker, a hand consists of three cards dealt from a deck of 52. How many different...
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3. In a company telephone tree, each employee is to phone three other employees. In the first round, three people are called. Each person phones three other people, and so on. a. During which round are 729 employees called? Show your work. b. What are the total number of people who have been called in the first seven rounds?
Transcribed Image Text:3. In a company telephone tree, each employee is to phone three other employees. In the first round, three people are called. Each person phones three other people, and so on. a. During which round are 729 employees called? Show your work. b. What are the total number of people who have been called in the first seven rounds?
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