A minimum-cost flow problem has 6 supply nodes, 4 transshipment nodes, and 6 demand nodes. Each supply node can ship to each transshipment node but cannot ship to any demand node or to any other supply node. Each transshipment node can ship to each demand node, but cannot ship to any supply node or to any other transshipment node. How many arcs will be included in the model? Number of arcs
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- A growing trend to "Buy American" may encourage U.S. automakers to increase political pressure on Washington to pass legislation for more restrictive quotas on Japanese car imports. In addition, a decline in the value of the U.S. dollar would be instrumental in Toyota's decision to build a manufacturing plant in the United States instead of continuing to export cars from Japan. If Toyota builds the plant, its decision would reflect Select one: a. a reactive strategy that would impact the competitive environmental force. O b. a negative impact as a result of adverse competitive, regulatory, and technological environmental forces. O c. a positive result from regulatory and economic environmental forces. O d. a positive response to a technological environmental force. O e. a proactive maneuver to manipulate and impact the social environmental force. In 2002, Geek Squad was purchased by leading retailerThe Maximum Requirment matrix is given below: T0: 2 6 4 7 4 T1: 3 3 6 6 7 T2: 2 2 2 1 1 T3: 2 5 3 7 4 T4: 3 4 5 7 7 The Available matrix is given below: 2 0 2 2 1 What is the need sequence for thread T0 ? [Hints. input only the values one after another starting with resourse A, then resource B without any space or anything in between. for example - if you insert 12345, that will mean the thread needs 1 instance of resource A, 2 instance of resource B and so on. ] What is the need sequence for thread T1 ? What is the need sequence for thread T2 ? What is the need sequence for thread T3 ? What is the need sequence for thread T4 ? What is the safe sequence? [Note, try to exexute the threads sequentitally that is T0, then T1 and so on. If T2 gets first chance in safe sequence, then again start with T0, then T1 and so on. ] [Hints. input safe sequence without any space or anything in between such as - T4T2T0T1T3] While identifying the above safe sequence, what are the…John is planning to travel to a country where there is some risk of contracting yellow fever. The direct market price for the medication that prevents yellow fever is $125. It would take him 2 hours to visit his doctor and get the prescription filled. The opportunity cost of his time is $25/hour. If he contracts yellow fever we assume that he will be sick and not able to work full days for two weeks. Under these conditions, let's assume he can work half days and has no vacation or sick time to use. His company will not pay him when he is sick and not working. His out of pocket expenses for medication, doctors’ visits, and lab tests to treat the yellow fever will be $500. His normal salary is $1,000 per week. John believes that his chance of getting yellow fever without preventative medicine is about 20%. His chance of getting yellow fever with the medication is 0%. There is no pain and suffering to be considered in this problem. What is the maximum price that John would pay…
- Suppose the administration of a University that is located a high-crime urban area mustdecide on a policy to increase policing on its campus. The student population is 10,500 students but iscould increase if crime is reduced. The cost of added policing in terms of additional salary and equipmentis estimated to be $2.4 million per year. Suppose the administration plans to make their decision with thehelp of a benefit cost analysis of the policy. VSL is $11.8 million a. Explain how the concept of Value of a Statistical Life might factor into a benefit cost analysis of thispolicy. b. How many lives would need to be save to justify the added policing costs if only prevented deathswere considered as the policy benefit? c. Suppose it is believed that student enrollment will increase in the future if crime on campus is reduced.Write a formula to calculate the present value of benefits of policing if student enrollment increases by4% each year.It was not quite what the planners had in mind when Sweden and Denmark opened their expensive bridge across the Oresund strait in July. After an early boost from summer tourism, car crossings have fallen sharply, while trains now connecting Copenhagen, the Danish capital, and Malmo, Sweden’s third city, are struggling to run on time. Many people think the costs of using the bridge are simply too high. And, from the point of view of Scandinavian solidarity, the traffic is embarrassingly one-sided: far more Swedes are going to Denmark than vice versa. So last week the authorities decided to knock almost 50% off the price of a one-way crossing for the last three months of this year. The two governments, which paid nearly $2 billion for the 16km (10-mile) state-owned bridge-cumtunnel, reckoned that, above all, it would strengthen economic ties across the strait and create, within a few years, one of the fastest-growing and richest regions in Europe. But ministers on both sides of the…Explain why scenario 3 is inefficient over 1 and 2
- Wile E. Coyote has placed an order for 30 tons of TNT from Acme Enterprises. Acme can manufacture TNT using raw materials (Z) found in a remote underground mine. Acme needs 1/3 ton of Z to produce 1 ton of TNT and they are deciding where to locate their factory in order to minimize transportation costs. The mine and Wile E. Coyote's house are 50 miles apart. By train, the cost of shipping 1 ton of both TNT and Z is $2 per mile. However, Acme faces an additional cost because a river passes between the mine and Wile E. Coyote's house, and the river has no bridge. Wile E. Coyote's House River Mine Both Z and TNT must be loaded onto barges to cross the river, which is located 16 miles from the mine. Barge operators charge $1 per ton of TNT shipped across the river. However, since the raw material Z is highly explosive when mixed with water, barge operators charge Acme $195 to ship one ton of Z across the river. Using the above information, find the transport-cost-minimizing location for…Problem 3: The following is an excerpt from an article published on October 9, 2015by the Wall Street Journal (the whole article is available as a separate document under the assignment folder): The U.S. Department of Agriculture, in a monthly report Friday, pegged corn output this autumn at 13.555 billion bushels on yields of 168 bushels an acre, topping analyst estimates for 13.461 billion bushels on yields of 166.4 bushels an acre. The government's yield forecast would mark the second highest behind last year's record 171 bushels per acre. Analysts expected the USDA to trim its yield forecast because of rainy weather early in the growing season in the eastern Midwest, which drew off nutrients from the soil and impeded some plant growth. But the government projected huge yields in the western Midwest, including Iowa, Minnesota and Nebraska. If there is one thing the report showed, it is "there's no shortage of grain in the U.S. or the world," said Don Roose, president of U.S.…There has been a decrease in people’s income and a rise in the price of sugar (an input for making Tea) in Pakistan during 2020 due to COVID-19 crisis simultaneously.
- The demand and supply of pizza is defined by the following equations: Qd = D(P, Y ) = 1 + Y − 2P Qs = D(P, PM) = 2 P/PM where, Qd is quantity demand, P is the price of each pizza sold, Y is the average income of consumers, Qs is the quantity supplied, and Pm is the price of inputs used in the production of pizza. (a) List the endogenous and exogenous variables of this model (b) Find the equilibrium price Pe and quantity Qe of pizza as a function of the exogenous variables. (c) Use a simple demand and supply diagram to show what happens to the equilibrium price and quantity when there is an increase in one of the exogenous variables.The city of Springfield lies at the east end of a railroad. To the west, there are one hundred miles of plains along which there are several towns-all connected to by rail. To the east of Springifeld are fifty miles of mountains, whose small villages are connected by a few winding dirt roads. The only factory in the region is in Springfield. It produces widgets at a cost of $20 per unit at the factory door. Thanks to the rail line, the transport cost to anywhere west of Springfield is $0.4 per mile. Given the poor state of the roads through the mountains, the transport costs to anywhere east of Springfield is $0.8 per mile. A) Graph the costs of widgets produced throughout the entire 150-mile region. Carefully label the costs at the factory, at the far western end of the region, and at the far eastern end of the region. B) Assume that the cost of making a widget at home is $44. What is the market area for the factory? (That is, how many miles west of Springfield will it stretch,…A furniture firm has the capability to producer chairs and tables. Management wants to evaluate whether producing both products or only one is better. Production and financial analysis show the following: Separate Production Approach Avg Cost of a table when ONLY tables are produced = 28 Avg Cost of a chair when ONLY chairs are produced = 18 Joint Production Approach Avg Cost of a table when BOTH tables and chairs are produced = 30 Avg Cost of a chair when BOTH tables and chairs are produced = 19 In economic terms, we would say the firm faces ______________. diseconomies of scope economies of scope economies of scale diseconomies of scale
