19 Convert the following binary and hexadecimal numbers to floating point format. Assume a binary format consisting of a sign bit (negative =1 ), a base 2, 8-bit, excess-128 exponent, and 23 bits of mantissa, with the implied binary point to the right of the first bit of the mantissa. a. 110110.0110112 b. 1.11110012 c. 4F7F16 d. 0.000000001111112 e. 0.1100236 f. 0.1100236