Appendix D

Associate Level Material
Appendix D

The Environment

Environmental and wildlife preservation ensures future generations will feel available resources and can enjoy the peach of Earth. On the other hand, some of the damage humans have already done to the environment is expensive and time overpowering to eradicate.

Application Practice

Answer the following questions. Use Equation editor in chief to write mathematical expressions and equations. First, save this file to your hard beget by selecting Save As from the File menu. Click the whitened space below each question to maintain straitlaced formatting.
The damage, in millions of dollars, to strike x % of pollution in a lake modeled by
What is the cost to charter 75% of the pollutant?
c=6000/(200-2x) c=6000/(200-2(75)) c=6000/(200-150) c=6000/50 c= one hundred twenty
The cost is 120 million to remove 75% of the pollution.

What is the cost to remove 90% of the pollutant?
c=6000/(200-2x) c=6000/(200-2(90)) c=6000/(200-180) c=6000/20 c=300
The cost is 300 million to remove 90% of the pollution.

What is the cost to remove 99% of the pollutant?
c=6000/(200-2x) c=6000/(200-2(99)) c=6000/(200-198) c=6000/2 c=3000

The cost is 3 Billion dollars to remove 99% of the pollution

For what value is this equation indefinable?




The denominator being set to zero…..
200-2x=0 200=2x…diveide both(prenominal) sides by 2….100=x
The equation is undefined for x=100.

Do the answers to sections a. through d. match your expectations? Explain wherefore or why not.
Yes, the answers met my expectations because the amount of removal costs increase with the amount of pollutant removed. Also, x=100 means it is impossible to figure the cost to remove 100% of the pollutant.

c=6000/(200-2x) c=6000/(200-2(100)) c=6000/(200-200) c=6000/0 c=0


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