<PRE><B>Question 1042169</B>
A Contagious disease enters a college campus, and the number of students infected by the disease is given by N(x) = 15000/(1+999^-0.8e^x) where x is the number of days after the disease appears on a campus. 
a.) How many students had the disease when it appeared on campus?
N(0) = (15000/(1+999^0) = 15000/1000 = 15
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b.) What is the upper limit of the number of students infected by the disease?
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As x increases, 999^-0.8e^x approaches zero.
Ans:: upper limit = 15000/1 = 15000 
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Cheers,
Stan H.
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