1. A company that manufactures amplified pressure transducers is trying to decide between the machines shown below. Compare them on the basis of their present worth values, using an interest rate of 5% per year. (30 points) First Cost, $ Annual Operating cost, S Iyear Overhaul in year 3, S Overhaul in year 4, $ Salvage Value, $ Variable Speed 279,000 230,000 Dual Speed 245,000 -235,000 -26,000 140,000 60,000 15,000 Life years NASA is considering two materials for use in a space vehicle. The costs are shown below. Which should be selected on the basis of a present worth comparison at an interest rate of 4% per year? 140 points) 2. Martian 250,000 Material KZ 10,000 First Cost,S Maintenance Cost, S/year30,000 Salvage Value, S Life years 25,000 20,000 2,000