Complex numbers are often used when dealing with alternating current (ac) circuits. in the equation $v = iz$, $v$ is voltage, $i$ is current, and $z$ is a value known as impedance. if $v = 1-i$ and $z=1+3i$, find $i$. express your answer as a complex number in the form $a+bi$, where $a$ and $b$ are real numbers.
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Business, 21.06.2019 22:20, abdulalghazouli
Amachine purchased three years ago for $720,000 has a current book value using straight-line depreciation of $400,000: its operating expenses are $60,000 per year. a replacement machine would cost $480,000, have a useful life of nine years, and would require $26,000 per year in operating expenses. it has an expected salvage value of $130,000 after nine years. the current disposal value of the old machine is $170,000: if it is kept 9 more years, its residual value would be $20,000. calculate the total costs in keeping the old machine and purchase a new machine. should the old machine be replaced?
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Business, 22.06.2019 17:30, gena75
Betty contracted with scooby’s skate store to deliver a pair of skates to jake for his birthday. scooby’s owner was going on a trip and delegated the delivery of the skates to brian. brian failed to make delivery. can jake sue brian for breach of contract, as he was not a party to the original contract? explain your answer. brian was not a party to the original contract. why would a court hold him responsible for failing to make delivery? if you do not think a court would hold him responsible, explain your answer. can jake sue scooby’s skates for breach of contract? explain your answer.
Answers: 2
Complex numbers are often used when dealing with alternating current (ac) circuits. in the equation...
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