Find the decay and sales volume

label Calculus
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Jul 10th, 2015

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decay

and sales

am doing the question

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Jul 10th, 2015

so what is the answer

Jul 10th, 2015
B = 53000
S(1) = 82960 and S(3) =61760 

(a)
82960 = 53000 + Ae^(1k)
29960 = Ae^k.............Eq1

61760 = 53000 + Ae^(3k)
8760 = Ae^(3k).............Eq2

Divide Eq1 by Eq2:
3.42 = e^(-2k)
ln 3.42 = -2k
k = (ln 3.42)/-2 = -.5676


b)$9642


Jul 10th, 2015

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