4) (10 pt) Dorfman & Daoutidis problem 1.27 Compute the following sums using base 10 and the indicated mantissa: (a) 12.4235 +0.2134 with a 3 bit mantissa (b) 1.029439 +4.3284 with a 2 bit mantissa (c) 4.532938 +0.004938 with a 5 bit mantissa