10a. Express 8675.309 as a float. Use 1 bit for the sign, 23 bits for the mantissa, and 8 bits for the exponent. Use a bias of 128 for the exponent. ipn Mantissa Exponent Explain your steps. 10b. Express 0.001492 as a float. Use 1 bit for the sign, 23 bits for the mantissa, and 8 bits for the exponent. Use a bias of 128 for the exponent. Sign Mantissa Exponent Explain your steps