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A company that has a two-year contract to haul ore from an open-pit mine to loading docks for shipping needs 200 additional trucks. Purchased trucks have a useful life of two years and a purchase cost of $140,000 each. The company can lease trucks for $80,000 per year (paid at the beginning of the year). Purchased trucks will be purchased only at the beginning of the two-year period and have no salvage value at the end of two years. The mining company has $8 million cash available to lease and/or buy trucks at the beginning of year 1. In addition, the company can obtain a loan each year for as mush as $20 million at 12% interest per year. The loan agreement requires that the company repay the borrowed amount plus interest at the end of each year. Each truck will earn $120,000 per year, which will become part of the cash flow of funds available to the company for truck leasing and loan repayment. The company wants to minimize the total cost of the trucks over the two-year period. Formulate a linear programming model for this problem. (Do not attempt to solve.)
Construct a graph showing supply and demand in the tablet case market and how are the laws of supply and demand illustrated in this graph? Explain your answers.
Find the Laplace transform of sin(2t). From the table of Laplace transforms, the Laplace transform of sin(2t) is
Air at 1 atm flows at a Reynolds number of 50,000 normal to a long, circular, 1-in.-diameter cylinder made of naphthalene. Using the physical properties of Example 3.14 for a temperature of 100oC, calculate the average sublimation flux in kmol/s-m..
Based on the sample data, can the average(mean) salary in the population be the same for each of the grade levels? (Assume equal variance, and use the Analysis Toolpak or the StatPlus:mac LE software function ANOVA.)
What variables might explain or predict an outcome in your department or life? If you generated a regression equation, how would you interpret it and the residuals from it?
Construct a percentage histogram and percentage polygon. Construct a cumulative percentage distribution.
Consider the flow under the sluice gate of Fig. If y1 = 10 ft and all losses are neglected except the dissipation in the jump, calculate y2 and y3 and the percentage of dissipation, and sketch the flow to scale with the EGL included. The channel i..
Solve the integer programming model for the below problem. For this problem, solve the integer programming model by using QM for Windows.
A researcher hypothesizes that the variation in the amount of money spent on business dinners is greater than the variation of the amount of money spent on lunches. The variance of nine business dinners was $6.12 and the variance of 12 business lu..
Do mental health counselors with doctoral degrees earn a higher yearly income than those with masters degrees 5 years post graduation? Provide the IV, DV, Covariate, and best method of analysis.
What is the probability that this string is a mirror image of itself and compute the probability that all of the balls in the sample are the same color
Find the components of the tensors F, C, B, f' and 11 for the deformation xl= a,(Xi+ aX2), X2 = a2X2, X3 = a3X3
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