(b) 000010111 000110 2. Normalize the following negative numbers (10-bit mantissa and a 6-bit exponent): How do you know whether a number in a computer's memory cell represents a number or a character code? 3. IN 1. Convert the following to binary a) 5.510 b) 15.2510 2. Convert the following to fixed point binary numbers to floating point binary a) 1101.01101