In the United States, telephone numbers consist of a three digit area code followed by a seven digit local number. Suppose neither the first digit of an area code nor the first digit of a local number can be a zero but that all other choices are acceptable. do not use commas when you write your number for example enter 3456789 NOT 3, 456, 789 how many telephone numbers are possible?
In the United States, telephone numbers consist of a three digit area code followed by a seven digit local number. Suppose neither the first digit of an area code nor the first digit of a local number can be a zero but that all other choices are acceptable. do not use commas when you write your number for example enter 3456789 NOT 3, 456, 789 how many telephone numbers are possible?
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 35SE: The set, S consists of 900,000000 whole numbers, each being the same number of digits long. How many...
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In the United States, telephone numbers consist of a three digit area code followed by a seven digit local number. Suppose neither the first digit of an area code nor the first digit of a local number can be a zero but that all other choices are acceptable.
do not use commas when you write your number for example enter 3456789 NOT 3, 456, 789
how many telephone numbers are possible?
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