Math 117 Appendix D In Progress

Math 117 Appendix D In Progress - Axia College Material...

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Axia College Material Appendix D The Environment Environmental and wildlife preservation ensures future generations will have available resources and can enjoy the beauty of Earth. On the other hand, some of the damage humans have already done to the environment is expensive and time consuming to eradicate. Application Practice Answer the following questions. Use Equation Editor to write mathematical expressions and equations. First, save this file to your hard drive by selecting Save As from the File menu. Click the white space below each question to maintain proper formatting. 1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by x C 2 200 000 , 6 - = a. What is the cost to remove 75% of the pollutant? b. What is the cost to remove 90 % of the pollutant? c. What is the cost to remove 99% of the pollutant? d. For what value is this equation undefined? e. Do the answers to sections a–d match your expectations? Why or why not? (Source: Sea World http://www.seaworld.org/animal-info/info-books/flamingo/physical- characteristics.htm ) 2. Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are \$2,500 for setup costs and \$3.00 to administer each test. a. Write an expression that gives the total cost to test x animals. b.

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This note was uploaded on 03/08/2010 for the course MTH MTH/117 taught by Professor Unsure during the Spring '10 term at University of Phoenix.

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Math 117 Appendix D In Progress - Axia College Material...

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