Posted by **jenny** on Saturday, May 19, 2012 at 10:55pm.

If no digit appears more than once, how many 2-digit numbers can be formed from the digits 1, 3, 5, and 7?

- algebra 2 -
**Steve**, Saturday, May 19, 2012 at 11:12pm
P(4,2) = 12

- algebra 2 -
**jenny**, Saturday, May 19, 2012 at 11:28pm
Thank you

## Answer This Question

## Related Questions

- 6th grade math - Answers for i am a-digit number. My hundreds digit is triple ...
- 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 ...
- algebra - Consider making a four-digit I.D. number using the digits 3,5,8, and ...
- math - 8. How many different four digit numbers can be made from the digits 3,8,...
- math - The number uses every number 0-9 the numbers are used only once the ...
- math count warm up - What positive four-digit integer has its thousands and ...
- math - *The number has 8 digits, none of the digits are the same. *It is evenly ...

More Related Questions