Until 1995, the rules for three-digit area codes in the United States were as follows: • The first digit could not be 0 or 1. • The second digit had to be 0 or 1 • The third digit had no such restrictions. In 1995, the restriction on the second digit of area codes was removed. How many area codes are possible after the restriction is removed? ... area codes (Type a whole number.)
Until 1995, the rules for three-digit area codes in the United States were as follows: • The first digit could not be 0 or 1. • The second digit had to be 0 or 1 • The third digit had no such restrictions. In 1995, the restriction on the second digit of area codes was removed. How many area codes are possible after the restriction is removed? ... area codes (Type a whole number.)
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
Problem 22E: License Plate Numbers In a certain state, each automobile license plate number consists of two...
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![1. The purposes of patrol. Be able to name at least three (3).
characters. (Protected View)
Until 1995, the rules for three-digit area codes in the United States were as follows
• The first digit could not be 0 or 1
• The second digit had to be 0 or 1.
• The third digit had no such restrictions.
In 1995, the restriction on the second digit of area codes was removed. How many area codes are possible after the restriction is removed?
area codes
(Type a whole number.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F06a734d0-d33f-4623-aa5a-81e864c0810a%2Fde0827df-e703-4bac-aaf1-9189e20174ac%2Fm1xt47m_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. The purposes of patrol. Be able to name at least three (3).
characters. (Protected View)
Until 1995, the rules for three-digit area codes in the United States were as follows
• The first digit could not be 0 or 1
• The second digit had to be 0 or 1.
• The third digit had no such restrictions.
In 1995, the restriction on the second digit of area codes was removed. How many area codes are possible after the restriction is removed?
area codes
(Type a whole number.)
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