A national truck rental services has a surplus of one truck in each of the cities, 1, 2, 3, 4, 5, and 6 and a deficit of one truck in each of the cities 7,8,9,10,11 and 12.The distance (in kilometers) between the cities with a surplus and cities with deficit are displayed below:a) How should the trucks be displayed so as to minimize the total distance travelled? 1 2 3 4 5 6 7 41 72 39 52 25 51 8 22 29 49 65 81 50 9 27 39 60 51 32 32 10 45 50 48 52 37 43 11 82 40 40 60 51 30

A national truck rental services has a surplus of one truck in each of the cities, 1, 2, 3, 4, 5, and 6 and a deficit of one truck in each of the cities 7,8,9,10,11 and 12.The distance (in kilometers) between the cities with a surplus and cities with deficit are displayed below:a) How should the trucks be displayed so as to minimize the total distance travelled? 1 2 3 4 5 6 7 41 72 39 52 25 51 8 22 29 49 65 81 50 9 27 39 60 51 32 32 10 45 50 48 52 37 43 11 82 40 40 60 51 30

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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21. Sofia earns money babysitting and shoveling snow. She charges different unit rates for each type of work. A. Complete the tables and determine the unit rate for each work activity. Babysitting da Shoveling Snow Charge (dollars) 15 30. 45 60 75 Number of Hours 1 2 1A 3 4 5 2025 Charge (dollars) 12 24 36 48 60 Unit rate: 36-3-12 Change (dollars) Number of Hours. B. Plot the ordered pairs from each table on the coordinate plane. Use circles to represent Sofia's earnings from babysitting and squares to represent her earnings from shoveling snow. 80 70 1 2 3 4 5 Unit rate: 75515 Sofia's Earnings 1 2 3 5 Number of Hours Chapter 2 Review 157
A pipeline network will be built that will connect six cities. Costs (in hundreds million dollars) to build these pipelines depending on the distance shown by the weighted graph below. Find a pipeline system for connecting all cities but with minimal total cost.
An office supply company services copiers and tracks how many machines are serviced and the length of time (in minutes) for a service call. The data below for 11 clients is below. Sum X = 46 Sum Y= 234 Sum XY = 5797 Sum X2 =1180 Sum Y2 =146608 1) Calculate SSYY, SSXX, SSXY 2) Calculate b0, b1 3) Interpret the estimated slope coefficient.
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4. Match each description with the appropriate type of graph. Some graph types can be used more than once. Description a) Displays discrete data in separate columns. Graph Bar graph Histogram Circle graph Stem and leaf plot Pictograph b) Organizes data by representing part of each number as a stem and the other part as a leaf. c) Uses pictures or symbols to represent data. d) Displays data as a percent of the whole. e) Uses proportional areas of the bars to show frequencies of the values of the variables. f) Represents data using a circle that has been divided into sectors. g) Represents nominal data, such as days of the week.
Determine the minimum distance required to get from farm 1 to farm 6. The farmers decided to install cable for television and Internet connections. Determine the minimum amount of cable required to connect all 6 farms.
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complete sentences) 1. A high school guidance counselor analyzed data from a sample of 300 community colleges throughout the United States. One of his goals was to estimate the annual tuition costs of community colleges in the United States. Describe the population and variable of interest to the guidance counselor (also explain the definitions).
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7. The following circle graph shows the distribution of expenditures related to wildlife watching in a recent year. Use the graph to answer the questions. Food Other 7% Lodging 5% 18% Transportation 7% Trip related costs 2% Equipment 61% a) What percent of expenditures are on food? b) In a recent year, $38 million was spent in wildlife watching recreation. How much of that was spent on transportation?