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May 5, 2015

Homework Help: math

Posted by Anonymous on Tuesday, January 4, 2011 at 5:01pm.

the binary system is used for computer programming. a binary number consists of a string of digits that are either 0s or 1s
a. if a string of binary code is 5 digits long, how many binary numbers are possible if the first digit is a 1?
b. how many different binary numbers can be represented by a string of binary code with 5 digits if the first digit is 1 and the last two digits are 0?

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