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'(t)= ky(1-y), where k is a positive real number. The fraction of people who initially know the rumor is y(0) = Y0, where 0sy, s 1. Complete parts (a) to (c) below. ..... y 1-y Take the reciprocal of each side of the equation. 1-y y Solve for y. %3= -kt. C+1 Substitute 0 for t and yo for y to find C. C= (Simplify your answer.) %3D Textbook Print Clear all Check answer THIS COurse (MATH ZZT0STUD rat ZUZTS Das TRES/COCIrancaicuUs tariy Taiscenaeritais, se ENG

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.7: Applications
Problem 16EQ
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Can someone please explain it to me ASAP??!! The part starts substitute 0 for t Separable Differential Equations
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'(t) = 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, s1. Complete parts (a) to (c) below.
1-y
Take the reciprocal of each side of the equation.
1-y
- kt.C
Solve for y.
y =
e- kt. eC+1
Substitute 0 for t and y, for y to find C.
C= (Simplify your answer.)
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Transcribed Image Text: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'(t) = 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, s1. Complete parts (a) to (c) below. 1-y Take the reciprocal of each side of the equation. 1-y - kt.C Solve for y. y = e- kt. eC+1 Substitute 0 for t and y, for y to find C. C= (Simplify your answer.) Textbook Print Clear all Check answer ENG ? O DELL E R F G H K Σ
ts
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'(t) = 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, s1. Complete parts (a) to (c) below.
a. Solve this initial value problem and give the solution in terms of k and yo
we eBook
Start by writing y' (t) = ky(1-y) in separated form.
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Contents
Y(1-y) dy = kdt
ar Success
Integrate both sides.
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1-y
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1-v
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Raise e to the power of each side of the equation.
y
1-y
ssible Resourc
kt
ussions
Take the recinrocal of each side of the equation
rse Tools
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Clear all
Check answer
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Transcribed Image Text:ts 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'(t) = 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, s1. Complete parts (a) to (c) below. a. Solve this initial value problem and give the solution in terms of k and yo we eBook Start by writing y' (t) = ky(1-y) in separated form. ook Contents Y(1-y) dy = kdt ar Success Integrate both sides. y In = kt +C (Do not simplify.) 1-y nedia Library 1-v ase Options Raise e to the power of each side of the equation. y 1-y ssible Resourc kt ussions Take the recinrocal of each side of the equation rse Tools Textbook Print Clear all Check answer TIS Course tiVAT ZUZT ntais, se ENG 会の DELL F4 FS F9 F12 Delete %23 # 2$ & * 2 3 4 5 6 8 Backsp E R A S D G K L V B Alt Alt Ctri <-Home Σ (7 N
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