Let w be the number of worms (in millions) and r the number of robins (in thousands)

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Let w be the number of worms (in millions) and r the number of robins (in thousands) living on an island. Suppose w and r satisfy the following differential equations, which correspond to the slope field in Figure 9.44.

People on the island like robins so much that they decide to import 200 robins all the way from England, to increase the initial population from r = 2 to r = 2.2 when t = 0. Does this make sense? Why or why not?

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Applied Calculus

ISBN: 9781119275565

6th Edition

Authors: Deborah Hughes Hallett, Patti Frazer Lock, Andrew M. Gleason, Daniel E. Flath, Sheldon P. Gordon, David O. Lomen, David Lovelock, William G. McCallum, Brad G. Osgood, Andrew Pasquale

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Question Posted: Apr 10, 2023 04:15 AM

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Let w be the number of worms (in millions) and r the number of robins (in thousands)

Question:

3 dw dt r (predator) 4 = w-wr, 1 11/ 117 11/ 1/ 1 1/2 1/// 21/ 117 117 17 | |/\| dr dt V 1 1 1 1 1 1 1 1 1 || = -r+wr. / / / / / / / / / / / 1 ///// 1 2 Figure 9.44: dr. dw 3 r(W-1) w(1-r) w (prey)

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It will work somewhat the maximum number the robins reach will in...View the full answer

Applied Calculus

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