the size of the population after t years. P Y00 Ne10,700 P= 1200 1200 - 10,700l400) (10700-400e 400 66 é +400 = 42800g6

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Ton af te
Biologists stocked a lake with 400 fish and estimated the maximal
population for the fish of that species in the lake to be 10,700. The
number of fish tripled in the first year. Assuming that the size of the
fish population satisfies the logistic equation, find an expression for
the size of the population aftert years.
P Y00
NEl0,700
P= 1900
10,700l400)
(10700-400e + 400
1200 -
10,300 e +400 = 428009o
yo0)
10300
log le )
= lo9, (0.30744)
そ0.30744
loge (95
(309) N, Po
-M= -1.17946
or
P(t)= (400X10,700)
(10 700 -y00), logs) !
+ 400
Transcribed Image Text:Ton af te Biologists stocked a lake with 400 fish and estimated the maximal population for the fish of that species in the lake to be 10,700. The number of fish tripled in the first year. Assuming that the size of the fish population satisfies the logistic equation, find an expression for the size of the population aftert years. P Y00 NEl0,700 P= 1900 10,700l400) (10700-400e + 400 1200 - 10,300 e +400 = 428009o yo0) 10300 log le ) = lo9, (0.30744) そ0.30744 loge (95 (309) N, Po -M= -1.17946 or P(t)= (400X10,700) (10 700 -y00), logs) ! + 400
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