Use a system of inequalities to represent the situations described in Exercises 61 – 68, then solve the system using the methods developed in this section. In drawing the graph of your solution set, you may want to take into consideration that certain quantities cannot be negative and therefore you may want to restrict the solution set appropriately as we did in Example 9.
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MYLAB MATH WITH PEARSON ETEXT FOR MATHEM
- Please show your complete solution. Thank you.arrow_forwardPlease help. Have it a clear solution if you may. Thank you!arrow_forwardThe bar graph shows the estimated number of calories per day needed to maintain energy balance for various gender and age groups for moderately active lifestyles. (Moderately active means a lifestyle that includes physical activity equivalent to walking 1.5 to 3 miles per day at 3 to 4 miles per hour, in addition to the light physical activity associated with typical day-to-day life.). Solve, b. The mathematical model M = -120x2 + 998x + 590 describes the number of calories needed per day, M, by men in age group x with moderately active lifestyles. According to the model, how many calories per day are needed by men between the ages of 19 and 30, inclusive, with this lifestyle? Does this underestimate or overestimate the number shown by the graph? By how much?arrow_forward
- The following graph shows operating costs for different modes of transit. The graph includes three types of rail. Heavy rail is designed to carry more passengers than light rail, but both often make frequent stops within cities. Commuter rail is used to move people longer distances with fewer stops. According to the graph, which of the following can you conclude? The following graph shows operating costs for different modes of transit. The graph includes three types of rail. Heavy rail is designed to carry more passengers than light rail, but both often make frequent stops within cities. Commuter rail is used to move people longer distances with fewer stops. Data from Chester, M., and Horvath, A., 2009. Environmental assessment of passenger transportation should include infrastructure and supply chains. Environmental Research Letters 4: 024008 (8 pp.) According to the graph, which of the following can you conclude? (The options) Public transportation always has lower…arrow_forwardSolve step wise step..... cleraly and in detail.arrow_forwardPlease give solution...arrow_forward
- # 2 evaluate. Show your complete answer in a given-required-solution format without the use of calculator.arrow_forwardA mover notes the weights of a table and 4 chairs and records t + 4c > 100 on his invoice. What is he communicating? A. The table and chairs each weigh more than 100 pounds. B. The table and chairs weigh at most 100 pounds. C. The table and chairs weigh around 100 pounds. D. The table and chairs weigh at least 100 pounds.arrow_forward1. Maximization. Complete solutionarrow_forward
- VI. Show your complete solution.arrow_forwardMarshall is comparing different companies that rent sound systems. The total cost, y, for each company includes a fixed rental fee plus an additional fee based on the number of hours, x, the sound system is rented. Information about the cost for each company is shown below. Part A Which company has the lowest additional fee per hour for renting a sound system? Show or explain how you found your answer. Part B Marshall claims that the company that has the lowest fixed rental fee is always the company that will represent the lowest total cost for renting a sound system. Is Marshall's claim correct? Justify your answer with an example from the situation.arrow_forwardQuestion is in the image. Is there a full step by step solution?arrow_forward
- Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal LittellAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage