Question 6 options: How many phone numbers of length seven (7) can we form such that both of the following two constraints are satisfied: Must contain at least one 8 Can not start with a 0 Examples of excluded phone numbers are: 1231567 and 0888888. Examples of permissible phone numbers are: 1238867 and  8888888

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
Problem 3ECP: A combination lock will open when you select the right choice of three numbers (from 1 to 30,...
icon
Related questions
Question

Question 6 options:

How many phone numbers of length seven (7) can we form such that both of the following two constraints are satisfied:

  • Must contain at least one 8
  • Can not start with a 0

Examples of excluded phone numbers are: 1231567 and 0888888.
Examples of permissible phone numbers are: 1238867 and  8888888.

Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781938168383
Author:
Jay Abramson
Publisher:
OpenStax
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning