Aldrich and Co. sold goods to Donovan on credit. The amount owed grew steadily, and finally Aldrich refused to sell any more to Donovan unless Donovan signed a promissory note for the amount due. Donovan did not want to but signed the note because he had no money and needed more goods. When Aldrich brought an action to enforce the note, Donovan claimed that the note was not binding because it had been obtained by economic duress. Was he correct

Aproduction line has three machines a, b, and c, with reliabilities of .96, .86, and .85, respectively. the machines are arranged so that if one breaks down, the others must shut down. engineers are weighing two alternative designs for increasing the line’s reliability. plan 1 involves adding an identical backup line, and plan 2 involves providing a backup for each machine. in either case, three machines (a, b, and c) would be used with reliabilities equal to the original three. a. compute overall system reliability under plan 1. (round your intermediate calculations and final answer to 4 decimal places.) reliability b. compute overall system reliability under plan 2. (round your intermediate calculations and final answer to 4 decimal places.) reliability c. which plan will provide the higher reliability? plan2plan1