A certain microcomputer uses a binary floating-point format with 4 bits for the exponent contains 4 bits. The arithmetic e and 1 bit for the sign sigma. The normalized mantissa uses rounding. (a) Find the machine epsilon, i.e., the distance between 1 and the next larger floating- point number. (b) Let x = (7.125)_10. Find its floating-point approximation A(x). Give A(x) in decimal. (c) What is the relative error in A(x)