1A.The equivalent annual cost for a machine that requires a $100,000 investment at time-period zero, and a $10,000 annual expense each of the next 5 years, if the opportunity cost of capital is 10%, is $ ... 1B.The EAC for a machine that requires a $100,000 investment at time zero, a $10,000 annual expense each of the next 5 years, but has a $10,000 net cost recovery in 5 years, if the opportunity cost of capital is 10%, is $ ...