Posted by **Karina** on Monday, April 1, 2013 at 6:44pm.

Consider making a four-digit I.D. number using the digits 3,5,8, and 0

a. How many I.D. numbers can be formed using each digit once?

b. How many can be formed using each digit once and not using 0 first?

c. How many can be formed if repetition is allowed and any digit can be first?

d. How many can be formed if repetition is allowed but 0 is not used first?

## Answer This Question

## Related Questions

- Calculus - How many 2-digit numbers can be formed using the digits 1,2,3,4,5,6,7...
- Math - If no digit may be used more than once, how many 2-digit numbers can be ...
- Please help me on math, thanks! - If no digit may be used more than once, how ...
- Math - If no digit may be used more than once, how many 5 digit numbers can be ...
- math - 8th grade - use the numbers one to nine, each one only once. now multiply...
- problem solving - a nine digit number is formed using each of the digit 1,2,3...
- math - USing all the digits0,1,2,3,4,5,6,7,8,9 once,write the smallest and the ...
- algebra 2 - If no digit appears more than once, how many 2-digit numbers can be...
- math - How many different 6 digit numbers can be formed using the digits 1,2,3,4...
- 6th grade math - Answers for i am a-digit number. My hundreds digit is triple ...

More Related Questions