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March 28, 2015

March 28, 2015

Posted by **Sam** on Friday, January 18, 2013 at 1:24pm.

t= -5ln((1000-n)/999n

where ln() stands for natural logarithm function.

a) Find the number of days that it takes for the disease to spread to 100, 200, 998, and 999 cows.

b) Graph the number of infected cows in the x-axis versus the time in days it takes for infection in the y-axis.

This model, called a logistic growth model, describes how a disease can spread very rapidly at first and then very slowly as nearly all of the population has become infected.

- Math -
**Sam**, Friday, January 18, 2013 at 8:10pm100, 23.55

200, 27.6

998, 65.6

999, 69,1 and you can find points in between to make your graph, It will be an upward graph to the left

- Math -
**Sam**, Friday, January 18, 2013 at 8:11pmSorry to the right

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