How did we decide to handle the possibility of queue underflow? group of answer choices
assume as a precondition that it will not occur.
throw a queueunderflowexception if it occurs.
provide an isempty operation so a client can prevent underflow.
ignore it.
throw a queueunderflowexception if it occurs, and provide an isempty operation so a client can prevent underflow.

Kim opim, an enthusiastic student, is on her flight over from philadelphia (phl) to paris. kim reflects upon how her educational experiences from her operations courses could explain the long wait time that she experienced before she could enter the departure area of terminal a at phl. as an airline representative explained to kim, there are four types of travelers in terminal a (buad 311) buad 311. mcgraw-hill create. vitalbook file. the citation provided is a guideline. check each citation for accuracy before use.

Paying attention to the purpose of her speech, which questions can she eliminate? a. 1 and 2 b. 3 c. 2 and 4 d. 1-4

The gilbert instrument corporation is considering replacing the wood steamer it currently uses to shape guitar sides. the steamer has 6 years of remaining life. if kept, the steamer will have depreciaiton expenses of $650 for five years and $325 for the sixthyear. its current book value is $3,575, and it can be sold on an internet auction site for$4,150 at this time. if the old steamer is not replaced, it can be sold for $800 at the endof its useful life. gilbert is considering purchasing the side steamer 3000, a higher-end steamer, whichcosts $12,000 and has an estimated useful life of 6 years with an estimated salvage value of$1,500. this steamer falls into the macrs 5-year class, so the applicable depreciationrates are 20.00%, 32.00%, 19.20%, 11.52%, 11.52%, and 5.76%. the new steamer is fasterand allows for an output expansion, so sales would rise by $2,000 per year; the newmachine's much greater efficiency would reduce operating expenses by $1,900 per year. to support the greater sales, the new machine would require that inventories increase by$2,900, but accounts payable would simultaneously increase by $700. gilbert's marginalfederal-plus-state tax rate is 40%, and its wacc is 15%.a. should it replace the old steamer? b. npv of replace = $2,083.51