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, s1. Complete parts (a) to (c) below. ...... Solve for y. -kt Substitute 0 for t and y, for y to find C. rary 1-Yo ons C= In Yo (Simplify your answer.) sourc Substitute C back into the found general solution. (Simplify your answer.) yo-1 1- kt e yo Textbook Print Clear all Final check 10:56

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter6: Exponential And Logarithmic Functions
Section6.8: Fitting Exponential Models To Data
Problem 2TI: Sales of a video game released in the year 2000 took off at first, but then steadily slowed as time...
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Can someone tell me why my answer is wrong??!! ASAP???!!! 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 0syo s1. Complete parts (a) to (c) below.
......
Solve for y.
-kt.c+1
Substitute 0 fort and y. for y to find C.
rary
(1-Yo
C= In
Yo
ons
(Simplify your answer.)
sourc
Substitute C back into the found general solution.
(Simplify your answer.)
kt
y =
y0 -1
1-
yo
Textbook
Print
Clear all
Final check
10:56
ENG
11/13/2
DELL
FS
F6
F7
14
F8
F11
F9
F10
F12
PriScr
Insert
Delete
24
4
7.
N8
Beckne
E
T.
D
G
B
AM
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 0syo s1. Complete parts (a) to (c) below. ...... Solve for y. -kt.c+1 Substitute 0 fort and y. for y to find C. rary (1-Yo C= In Yo ons (Simplify your answer.) sourc Substitute C back into the found general solution. (Simplify your answer.) kt y = y0 -1 1- yo Textbook Print Clear all Final check 10:56 ENG 11/13/2 DELL FS F6 F7 14 F8 F11 F9 F10 F12 PriScr Insert Delete 24 4 7. N8 Beckne E T. D G B AM
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