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how many 7 digit phone

a 7 digit phone number has a 3 digit prefix followed by 4 digits.how many different phone numbers are possible??
1. 2 answers
2. asked by angela
3. 483 views
Write a program that simulates the dial of a phone number. The program will input a phone number and the program will
1. 1 answer
2. asked by Jeffry
3. 647 views
how many 7-digit phone numbers are possible if the first digit must be non-zero? answer in scientific notation.
1. 3 answers
2. asked by mychelle
3. 524 views
how many 7 digit phone numbers are possible if the first digit cannot be 0 and the other digits can each be any number from 0
1. 1 answer
2. 14 views
When a telephone exchange is established, there are 10,000 new phone numbersto use(i.e. 722-0000 to 722-9999). Of these 10,000
1. 2 answers
2. asked by Steve
3. 406 views
How many different seven digit phone numbers are available if the only restriction is that the first digit cannot be 0.
1. 2 answers
2. asked by Matt
3. 378 views
It is a 7-digit numberIt has a digit 0. The greatest digit is in the hundred thousands place. The value of the digit 1 is
1. 2 answers
2. asked by Marsha
3. 1,821 views
How many possible combinations are there for a seven-digit phone number if the first digit of the phone number must be odd?
1. 0 answers
2. asked by 7uke
3. 138 views
a) Consider the design of a communication system.i. How many three-digit phone prefixes that are used to represent a particular
1. 0 answers
2. asked by Essam
3. 275 views
this code has five digit 1,2,3,4,5. the first digit plus the second digit is equal to the third digit the second digit twice
1. 1 answer
2. asked by shruthi
3. 881 views