Posted by **Lucy** on Saturday, April 17, 2010 at 1:39am.

If you wanted to code 94 distinct characters, such as those found on a coputer keyboard, how many dots would the system need?

- math -
**Reiny**, Saturday, April 17, 2010 at 8:09am
If I understand your question correctly,

using 1 dot -- 1 way

using 2 dots -- 2! or 2 ways

using 3 dots -- 3! or 6 ways

using 4 dots -- 4! or 24 ways

running total = 33

so we have to go to 5 dots, which would give us an extra 120 ways, enough to handle the 94 needed.

## Answer This Question

## Related Questions

- mathh - Louis Braille devised a system of six raised or not-raised dots to ...
- Computer Science Principles - I need to know what's wrong with my code and it's ...
- Math - 1.) A security code has seven characters. Each code begins with two ...
- programming - Write a C++ code to count the number of characters, words, and ...
- Data Management (Math) - A Canadian postal code uses six characters. The first, ...
- Chemistry - Can you tell me if i did these right?? Lewis Dot Structure A. BrF = ...
- Technology - How mis typing speed measured? In characters per second In ...
- math - I know that the obvious pattern between circle and square alternates. If ...
- MATHS - d/f coes each consisting of 5 characters are to be generated. In each ...
- Morse Code Please Answer! - My book doesn't explain how, for example, if D was...

More Related Questions