9 articles trouvés pour ce sujet.
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Six-digit telephone numbers |
2020-03-12 |
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Lulamile pose la question : What is the probability that a six-digit telephone number has no repeated digits? The telephone number cannot begin with a zero Penny Nom lui répond. |
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The last two digits of a phone number |
2016-04-03 |
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Joshua pose la question : I want to find the last two digits of a phone number whose first eight numbers of a ten digit phone numbers are known. Penny Nom lui répond. |
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Missing digits in a phone number |
2015-01-07 |
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Janelle pose la question : I had a friend try and play a game on me, regarding phone numbers, so I only know the area code , and the last four digits of the phone number. Which means, there are 3 digits that I need to figure out all the possibilities to. Penny Nom lui répond. |
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Four digit phone numbers |
2014-02-25 |
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Tom pose la question : Hi, I'm an online math teacher, working on lessons for my students.
This question is in their book and I can't do it...! Help!
It has to do with phone numbers, and in this problem,
we are only dealing with
the last 4 digits of the number.
It asks how many possible numbers we have
if at least one digit repeats in the last 4 digits of the number. Penny Nom lui répond. |
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7 digit phone numbers |
2013-12-08 |
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Sean pose la question : Hi I was wondering how you would calculate how may 7 digit phone numbers there are with only odd digits? Penny Nom lui répond. |
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Missing three digits in a phone number |
2009-01-30 |
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Elmer pose la question : I have part of a phone number. the first 3 digits are 212, the last digit is four, and the three missing digits are all odd, how many numbers will I have to call to get the right number?
212- _ _ _ 4? Stephen La Rocque and Penny Nom lui répond. |
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Some phone numbers |
2008-06-30 |
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star pose la question : What do you think the probability of finding the last 3 digits of a telephone number if the 1st digit begins with 7? Janice Cotcher and Harley Weston lui répond. |
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Phone number combinations |
2007-01-04 |
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Efrain pose la question : i want to know the different combinations for numbers 7 digits the number are 0-9 its basically the different phone number combinations example: 555-6689 or 565-4896 i just want to know for many different combinations are there.... Penny Nom lui répond. |
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Phone Number Possibilities |
2000-01-09 |
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Hamilton Weston pose la question : How do phone companies arrive at the possible number of phone numbers that can be generated for customers? Harley Weston lui répond. |
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