
Excursions in Modern Mathematics (9th Edition)
9th Edition
ISBN: 9780134468372
Author: Peter Tannenbaum
Publisher: PEARSON
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Question
Chapter 11, Problem 20E
To determine
(a)
To find:
The rotocenter
To determine
(b)
To find:
The angle of rotation.
To determine
(c)
To find:
The image of quadrilateral
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Microsoft Excel snapshot for random sampling: Also note the formula used for the last
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The spread of an infectious disease is often modeled using the following autonomous differential equation:
dI
-
- BI(N − I) − MI,
dt
where I is the number of infected people, N is the total size of the population being modeled, ẞ is a constant determining the rate of
transmission, and μ is the rate at which people recover from infection.
Close
a) (5 points) Suppose ẞ = 0.01, N = 1000, and µ = 2. Find all equilibria.
b) (5 points) For the equilbria in part a), determine whether each is stable or unstable.
c) (3 points) Suppose ƒ(I) = d. Draw a phase plot of f against I. (You can use Wolfram Alpha or Desmos to plot the function, or draw the
dt
function by hand.) Identify the equilibria as stable or unstable in the graph.
d) (2 points) Explain the biological meaning of these equilibria being stable or unstable.
Find the indefinite integral.
Check
Answer:
7x
4 + 1x
dx
Chapter 11 Solutions
Excursions in Modern Mathematics (9th Edition)
Ch. 11 - In Fig.1135_, indicate which point is the image of...Ch. 11 - Prob. 2ECh. 11 - Prob. 3ECh. 11 - In Fig. 11-38, P is the image of P under a...Ch. 11 - In Fig.11-39, l is the axis of reflection. a.Find...Ch. 11 - In Fig. 11-40, l is the axis of reflection. a....Ch. 11 - Prob. 7ECh. 11 - In Fig 11-42, P is the image of P under a...Ch. 11 - In Fig. 11-43, P is image of P under a reflection....Ch. 11 - Prob. 10E
Ch. 11 - In Fig. 11-45, A and B are fixed points of a...Ch. 11 - Prob. 12ECh. 11 - In Fig. 11-47, indicate which point is a. the...Ch. 11 - Prob. 14ECh. 11 - In each case, give an answer between 0 and 360. 1....Ch. 11 - Prob. 16ECh. 11 - Prob. 17ECh. 11 - Prob. 18ECh. 11 - Prob. 19ECh. 11 - Prob. 20ECh. 11 - Prob. 21ECh. 11 - Prob. 22ECh. 11 - In Fig. 11-54, indicate which point is the image...Ch. 11 - Prob. 24ECh. 11 - Prob. 25ECh. 11 - In Fig. 11-57, Q is the image of Q under a...Ch. 11 - In Fig. 11-58, D is the image of D under a...Ch. 11 - Prob. 28ECh. 11 - Prob. 29ECh. 11 - Prob. 30ECh. 11 - Prob. 31ECh. 11 - In Fig 11-63, P is the image of P under a glide...Ch. 11 - In Fig.11-64, B is the image of B and D is the...Ch. 11 - Prob. 34ECh. 11 - Prob. 35ECh. 11 - Prob. 36ECh. 11 - In Fig 11-68, D is the image of D and C is the...Ch. 11 - In Fig11-69, A is the image of A and D is the...Ch. 11 - Prob. 39ECh. 11 - Prob. 40ECh. 11 - Prob. 41ECh. 11 - Prob. 42ECh. 11 - Prob. 43ECh. 11 - Prob. 44ECh. 11 - Prob. 45ECh. 11 - Prob. 46ECh. 11 - Find the symmetry type for each of the following...Ch. 11 - Prob. 48ECh. 11 - Prob. 49ECh. 11 - Prob. 50ECh. 11 - Prob. 51ECh. 11 - Prob. 52ECh. 11 - Prob. 53ECh. 11 - Prob. 54ECh. 11 - Prob. 55ECh. 11 - Prob. 56ECh. 11 - Prob. 57ECh. 11 - Prob. 58ECh. 11 - Prob. 59ECh. 11 - Prob. 60ECh. 11 - Prob. 61ECh. 11 - Prob. 62ECh. 11 - Prob. 63ECh. 11 - Prob. 64ECh. 11 - Suppose that a rigid motion M is the product of a...Ch. 11 - Prob. 66ECh. 11 - Prob. 67ECh. 11 - Prob. 68ECh. 11 - Prob. 69ECh. 11 - Prob. 70ECh. 11 - Prob. 71ECh. 11 - Prob. 72ECh. 11 - Prob. 73ECh. 11 - Prob. 74ECh. 11 - Prob. 75ECh. 11 - Prob. 76ECh. 11 - Prob. 77ECh. 11 - Prob. 78ECh. 11 - Prob. 79ECh. 11 - Prob. 80E
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