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July 28, 2015

Homework Help: ALGEBRA 117

Posted by LOST on Saturday, August 13, 2011 at 3:21pm.

1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by C= 3,000/300-3x.

Please note: x is in percent, not decimal form.

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. through d. match your expectations? Explain why or why not.

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