Concept explainers
To calculate: The number of different ways to schedule 7 classes.
Answer to Problem 17E
The number of different ways to schedule 7 classesare
Explanation of Solution
Given information:
The 7 classes are to be scheduled and each class is offered in each of 7 periods.
Formula used:
If there are n objects taken n at a time then permutation is defined as
Calculation:
Consider the provided information that 7 classes are to be scheduled and each class is offered in each of 7 periods.
To schedule 7 classes, there are 7 choices to select from in first period then6 ways to select from for second period, 5 ways select from for third period
Therefore, number of ways are
Recall that if there are n objects taken n at a time then permutation is defined as
Here n is 7.
Thus, the number of different ways to schedule 7 classes are
Chapter 13 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
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