3. 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? (hand calculation el Material A Material B First Cost, $ Maintenance cost, $ /year Salvage Value, $ Life -$185,000 -$25,000 $12,000 -$200,000 -$22,000 $18,000 2 4 years You should consider Least Common Multiple of (2 and 4) which is 4 years in your analysis instead of 2 years!

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