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Chapter 12: Q. 68 (page 817)
Make up an arithmetic sequence. Give it to a friend and ask for its twentieth term.
Twentieth term is 43
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For the functionfind.
In Problems 71-82, find the sum of each sequence.
In Problems 61鈥�70, express each sum using summation notation.
Environmental Control: The Environmental Protection Agency (EPA) determines that Maple Lake has 250 tons of pollutants as a result of industrial waste and that 10% of the pollutant present is neutralized by solar oxidation every year. The EPA imposes new pollution control laws that result in 15 tons of new pollutant entering the lake each year. The amount of pollutant in the lake at the end of each year is given by the recursively defined sequence
(a) Determine the amount of pollutant in the lake at the
end of the second year. That is, determine p2 .
(b) Using a graphing utility, provide pollutant amounts for
the next 20 years.
(c) What is the equilibrium level of pollution in Maple
Lake? That is, what is localid="1646823556776" ?
In Problems 17鈥�28, write down the first five terms of each sequence.
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