la Sociologists model the spread of rumors using logistic equations. The key assumption is that at any given time a fraction y of the population, where 0sys1, knows the rumor, while the remaining fraction 1-y does not. Furthermore, the rumor spreads by interactions between those who know the rumor and those who do not. The number of such interactions is proportional to y(1-y). Therefore, the equation that describes the spread of the rumor is y' (1) = ky(1 - y), where k is a positive real number. The fraction of people who initially know the rumor is y(0) = yo, where 0sy, s 1. Complete parts (a) to (c) below. ....... a. Solve this initial value problem and give the solution in terms of k and yo- Start by writing y'(t) = ky(1- y) in separated form. dy = kdt y(1-y) eBook Integrate both sides. In = kt +C (Do not simplify.) ntents Raise e to the power of each side of the equation. y uccess kt 1-y ia Library Take the recinrocal of each sirde of the enuation
la Sociologists model the spread of rumors using logistic equations. The key assumption is that at any given time a fraction y of the population, where 0sys1, knows the rumor, while the remaining fraction 1-y does not. Furthermore, the rumor spreads by interactions between those who know the rumor and those who do not. The number of such interactions is proportional to y(1-y). Therefore, the equation that describes the spread of the rumor is y' (1) = ky(1 - y), where k is a positive real number. The fraction of people who initially know the rumor is y(0) = yo, where 0sy, s 1. Complete parts (a) to (c) below. ....... a. Solve this initial value problem and give the solution in terms of k and yo- Start by writing y'(t) = ky(1- y) in separated form. dy = kdt y(1-y) eBook Integrate both sides. In = kt +C (Do not simplify.) ntents Raise e to the power of each side of the equation. y uccess kt 1-y ia Library Take the recinrocal of each sirde of the enuation
Chapter5: Exponential And Logarithmic Functions
Section5.5: Exponential And Logarithmic Models
Problem 30E: The table shows the mid-year populations (in millions) of five countries in 2015 and the projected...
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