ФЫ ВАПРОВАЛРОЛ ДЗ А П Р ОЛДЖЫВАПРЯЧСМИТАЧСМИТЬБСМИТЬБЮ ЯЧСмитDON'T USE AI | DON'T USE AI DON'T USE AI | DON'T USE AI |DON'T USE AI |SOLVE STEP BY STEP IN DIGITAL FORMATUse the inverse matrix method to solve the following problem: A carmanufacturer has launched three new models (A, B and C) on the market. Thesales price of each model is 1.5, 2 and 3 million dollars, respectively, bringingthe total amount of cars sold during the first month to 250 million. On the otherhand, the manufacturing costs are 1 million per car for model A, 1.5 for model Band 2 for model C. The total manufacturing cost of the cars sold that month was175 million and the total number of cars sold 140. Create a system to determinethe number of cars sold of each model and solve the problem.ЩКЕНГшуицУКЕНГШУКЕНГ ШУКЕНГ ШУЙЦУКЕНГШУКЕНГ ШIBAПPО В Ф Ы В А П Р О BAПPОЛ ДЗ А П Р ОЛДЭКЕНГШ щ.ЗКЕНГШЩ:Щ

Assume 'x' be the number of cars of model 'A', 'y' be the number of cars of model 'B' and 'z' be the…

Answered: he inverse matrix method to solve the…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Alphonse donates a fair amount of money to various charities each year. He wants to know that his money is actually going to do the charity work, though. Suppose that 90% of the charities that he donates to are probably reputable and 10% are probably not. Also, suppose that 80% of the money that goes to the real charities ends up actually being used for the charity work, while 20% goes to administrative costs. If he donates the same amount to each charity, then what percent probably goes to actual charity work? 72| % SUBMIT ANSWER O ASK FOR HELP TURN IT IN to search 344 111 80 Y U D H. V
. In 2010, of a total of 67,000 rooms on the Las Vegas Strip, Caesars Entertainment managed 22,880, while MGM Resorts managed over 12,000. However, owing to the Great Recession and new hotel openings, between 2008 and 2010, MGM's hotel occupancy decreased from 92% to 89%, while its average daily room rate fell from $148 to $108. Meanwhile, CityCenter, managed by MGM Resorts, and the Cosmopolitan opened with 4,000 and 3,000 rooms respectively, and the 1,720-room Sahara closed. (Sources: Caesars Entertainment Corp., Annual Report 2010; MGM Resorts, Annual Report 2010; "Sahara's closure on May 16 will mark `the end of an era'," Las Vegas Sun, March 11, 2011.) (a) Using a suitable figure, explain how the opening of CityCenter and the Cosmopolitan affects the residual demand for an existing hotel and how it should adjust prices. (b) If MGM Resorts had not reduced its room rates, what would have been the effect on occupancy? (c) Use the Cournot model to explain…
Garfield Company manufactures a popular brand of dog repellant known as DogGone It, which it sells in gallon-size bottles with a spray attachment. The majority of Garfield's business comes from orders placed by homeowners who are trying to keep neighborhood dogs out of their yards. Garfield's operating information for the first six months of the year follows: Month January Operating Cost Number of Bottles Sold 1,020 $ 10,710 February 1,450 15,660 March 1,740 15,900 April 2,350 19,890 3,360 27,490 3,800 34,800 May June Required: 3. Using the high-low method, calculate Garfield's total fixed operating costs and variable operating cost per bottle. 4. Perform a least-squares regression analysis on Garfield's data. 5. Determine how well this regression analysis explains the data. 6. Using the regression output, create a linear cost equation (y-a + bx) for estimating Garfield's operating costs.
Two departments of a firm, A and B, need differing amounts of steel, wood, and plastic. The table on the right gives the amount of each product the departments need. These three products are supplied by two suppliers, Company C and Company D, with the unit prices given in the table on the right. a. Use matrix multiplication to determine how much these orders will cost each department at each of the two suppliers. Enter the amounts into the cost matrix shown on the right. Department A Department B Steel Wood Plastic Dept. A Dept. B Company C 600 310 310 Co. C Steel Wood Plastic 60 40 40 60 70 60 Company D 560 190 390 Co. D
A manufacturing company makes two types of water skis, a trick ski and a slalom ski. The relevant manufacturing data are given in the table. Labor-Hours per Ski Maximum Labor-Hours Available per Day Department Fabricating Finishing Answer parts (A), (B), and (C) below. Trick Ski 6 1 Slalom Ski 4 1 (A) If the profit on a trick ski is $30 and the profit on a slalom ski is $40, how many of each type of ski should be manufactured each day to realize a maximum profit? What is the maximum profit? The maximum profit is $ The maximum occurs when trick skis and 216 42 slalom skis are produced.
Solve the following system of linear equations utilizing (a) only elementary matrices. (b) Multiply all the elementary matrices obtained in (a) in a sequential manner. (c) Multiply the resulting matrix obtained in (b) and the column matrix B. 2х, — х, +3х, %3D 10 - 3x, +x, +2x, =-1.5 х — 4х, + х, 3 7.5 Show 4 digits after the decimal.
Anela is a computer scientist who is formulating a large and complicated program for a type of data processing. She has three ways of storing and retrieving data: cloud storage, disk, or hard drive. As an experiment, she sets up her program in three different ways: one using cloud storage, one using disks, and the other using a hard drive. Then she makes four test runs of this type of data processing on each program. The time required to execute each program is shown in the following table (in minutes). Use a 0.01 level of significance to test the hypothesis that the mean processing time is the same for each method. Hard Drive Cloud Disks 8.8 7.5 7.1 8.8 9.2 6.6 8.0 7.2 10.2 7.6 7.9 8.0 (i) Give the value of the level of significance. (ii) Find the sample test statistic. (Round your F Ratio to two decimal places. Round all other answers to four decimal places.) (vi) In the case of one-way ANOVA, make a summary table. (Round your answers to three decimal places.)…
Two departments of a firm, A and B, need differing amounts of steel, wood, and plastic. The table on the right gives the amount of each product the departments need. These three products are supplied by two suppliers, Company C and Company D, with the unit prices given in the table on the right. C a. Use matrix multiplication to determine how much these orders will cost each department at each of the two suppliers. Enter the amounts into the cost matrix shown on the right. Dept. A Dept. B Department A Department B Steel Wood Plastic Co. C Company C 580 280 280 Co. D Company D — 570 180 380 Steel 70 60 Wood 60 40 Plastic 40 60
(c) According to matrix AB, what is the total cost of salaries for all employees (managers and associates) at the restaurant? What is the total cost of benefits for all employees at the food truck? The total cost of salaries for all employees at the restaurant is $?

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