The exponential function P 200 x 0.83m gives the amount in parts per million of PCBS in a contaminated site m months after a cleanup process begins. (a) What is the weekly decay factor? Assume there are four weeks in each month. (Round your answer to two decimal places.) Find a formula that gives the amount P in parts per million w weeks after cleanup begins. P =200 x 3.32W P= 200 x 0.21W P =200 x 0.91W P =200 x 0.95W P =200 x 0.47W (b) What is the yearly decay factor? (Round your answer to two decimal places.) Find a formula that gives the amount P in parts per million y years after cleanup begins. P= 200 x 0.11 P= 200 x 0.07Y 200 x 4.98 P P = 200 x 0.98Y P = 200 x 9.96Y

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The exponential function P
200 x 0.83m gives the amount in parts per million of PCBS in a contaminated site m months after a
cleanup process begins.
(a) What is the weekly decay factor? Assume there are four weeks in each month. (Round your answer to two decimal
places.)
Find a formula that gives the amount P in parts per million w weeks after cleanup begins.
P =200 x 3.32W
P= 200 x 0.21W
P =200 x 0.91W
P =200 x 0.95W
P =200 x 0.47W
(b) What is the yearly decay factor? (Round your answer to two decimal places.)
Find a formula that gives the amount P in parts per million y years after cleanup begins.
P= 200 x 0.11
P= 200 x 0.07Y
200 x 4.98
P
P = 200 x 0.98Y
P = 200 x 9.96Y
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Transcribed Image Text

The exponential function P 200 x 0.83m gives the amount in parts per million of PCBS in a contaminated site m months after a cleanup process begins. (a) What is the weekly decay factor? Assume there are four weeks in each month. (Round your answer to two decimal places.) Find a formula that gives the amount P in parts per million w weeks after cleanup begins. P =200 x 3.32W P= 200 x 0.21W P =200 x 0.91W P =200 x 0.95W P =200 x 0.47W (b) What is the yearly decay factor? (Round your answer to two decimal places.) Find a formula that gives the amount P in parts per million y years after cleanup begins. P= 200 x 0.11 P= 200 x 0.07Y 200 x 4.98 P P = 200 x 0.98Y P = 200 x 9.96Y

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