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A government is considering paving a highway with a newly developed "wear-proof" mate- rial. Paving the highway with the new material would cost an additional $3 billion today, but it would save $400 million in maintenance costs every year for the next 10 years (starting from next year).
(a) Suppose the interest rate is 4%. What is the present discounted value of the savings in maintenance costs over 10 years if the "wear-proof" material is used in building the highway now? Based on your calculation, is the project with the new material worth undertaking
(b) Answer the same question as in (a) if the interest rate is 8%.
(c) A politician says to you, "I don't care what the interest rate is. The project is clearly a good investment: it more than pays for itself in only 8 years, and all the rest is money in the bank." What's wrong with this argument, and why does the interest rate matter?
You can use a calculator or excel spreadsheet to compute, but write down the equation you use to compute.
Suppose that you would like to create an instance of a new Map that has an iteration order that is the same as the iteration order of an existing instance of a Map. Which concrete implementation of the Map interface should be used for the new inst..
They are asking candidates to describe briefly how they would satisfy StoreItRite's requirements as stated above. How would a successful candidate respond?
Discuss why auditing is a cyclical process and it is never truly complete.
How are digital cameras and scanners being used in some medical offices? Can you think of some additional or innovative uses for these device in a medical office?
Write a modularized program that will utilize a main menu to control the program's functions and a list to store the members of your team. The following functions that your program needs to include:
In addition, can you generalize the QA activities described in this chapter to deal with defects related to things other than software?
Discuss reasons why the economic growth of China varies so markedly. How does trade influence the strength of the economy worldwide?
Dorothy E. Denning and Peter J. Denning. "Data Security." ACM Comp. Sum. II. No. 3 (September 1979). A good tutorial on security matters.
Suppose the voltage across an inductor of a circuit is represented by y 2 cos 2x and the current across the component is represented
Explain the relationship between risk and loss. Describe risk management and assess its level of importance in information security.
Forest Point Construction At Forest Point Construction, your boss says that he can estimate the total project time based on his personal experience. You are trying to convince him that he should use project management techniques to handle a comple..
A bug collector collects bugs every day for seven days. Design a modularized program that keeps a running total of the number of bugs collected during the seven days. The loop should ask for the number of bugs collected for each day, and when the loo..
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