Nature of Mathematics (MindTap Course List)
13th Edition
ISBN: 9781133947257
Author: karl J. smith
Publisher: Cengage Learning
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Chapter 15.1, Problem 21PS
To determine
To graph:
The lines through the given point
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Microsoft Excel snapshot for random sampling: Also note the formula used for the last
column
02
x✓ fx =INDEX(5852:58551, RANK(C2, $C$2:$C$51))
A
B
1
No.
States
2
1
ALABAMA
Rand No.
0.925957526
3
2
ALASKA
0.372999976
4
3
ARIZONA
0.941323044
5
4 ARKANSAS
0.071266381
Random Sample
CALIFORNIA
NORTH CAROLINA
ARKANSAS
WASHINGTON
G7
Microsoft Excel snapshot for systematic sampling:
xfx INDEX(SD52:50551, F7)
A
B
E
F
G
1
No.
States
Rand No. Random Sample
population
50
2
1 ALABAMA
0.5296685 NEW HAMPSHIRE
sample
10
3
2 ALASKA
0.4493186 OKLAHOMA
k
5
4
3 ARIZONA
0.707914 KANSAS
5
4 ARKANSAS 0.4831379 NORTH DAKOTA
6
5 CALIFORNIA 0.7277162 INDIANA
Random Sample
Sample Name
7
6 COLORADO 0.5865002 MISSISSIPPI
8
7:ONNECTICU 0.7640596 ILLINOIS
9
8 DELAWARE 0.5783029 MISSOURI
525
10
15
INDIANA
MARYLAND
COLORADO
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 15 Solutions
Nature of Mathematics (MindTap Course List)
Ch. 15.1 - Use the map of Venus shown in Figure 15.13 to name...Ch. 15.1 - Prob. 2PSCh. 15.1 - Prob. 3PSCh. 15.1 - Prob. 4PSCh. 15.1 - Prob. 5PSCh. 15.1 - Prob. 6PSCh. 15.1 - Prob. 7PSCh. 15.1 - Prob. 8PSCh. 15.1 - Prob. 9PSCh. 15.1 - Prob. 10PS
Ch. 15.1 - Prob. 11PSCh. 15.1 - Prob. 12PSCh. 15.1 - Prob. 13PSCh. 15.1 - Prob. 14PSCh. 15.1 - Prob. 15PSCh. 15.1 - Prob. 16PSCh. 15.1 - Prob. 17PSCh. 15.1 - Prob. 18PSCh. 15.1 - Prob. 19PSCh. 15.1 - Prob. 20PSCh. 15.1 - Prob. 21PSCh. 15.1 - Prob. 22PSCh. 15.1 - Prob. 23PSCh. 15.1 - Prob. 24PSCh. 15.1 - Prob. 25PSCh. 15.1 - Prob. 26PSCh. 15.1 - Prob. 27PSCh. 15.1 - Prob. 28PSCh. 15.1 - Prob. 29PSCh. 15.1 - Prob. 30PSCh. 15.1 - Prob. 31PSCh. 15.1 - Prob. 32PSCh. 15.1 - Prob. 33PSCh. 15.1 - Prob. 34PSCh. 15.1 - Prob. 35PSCh. 15.1 - Prob. 36PSCh. 15.1 - Prob. 37PSCh. 15.1 - Prob. 38PSCh. 15.1 - Prob. 39PSCh. 15.1 - Prob. 40PSCh. 15.1 - Prob. 41PSCh. 15.1 - Prob. 42PSCh. 15.1 - Prob. 43PSCh. 15.1 - Level 2 Graph the lines in Problems 31-44. y=0.01xCh. 15.1 - Prob. 45PSCh. 15.1 - Prob. 46PSCh. 15.1 - Prob. 47PSCh. 15.1 - Prob. 48PSCh. 15.1 - Prob. 49PSCh. 15.1 - Prob. 50PSCh. 15.1 - Prob. 51PSCh. 15.1 - Prob. 52PSCh. 15.1 - Prob. 53PSCh. 15.1 - Prob. 54PSCh. 15.1 - Prob. 55PSCh. 15.1 - Prob. 56PSCh. 15.1 - Prob. 57PSCh. 15.1 - Prob. 58PSCh. 15.1 - Prob. 59PSCh. 15.1 - Prob. 60PSCh. 15.2 - Prob. 1PSCh. 15.2 - Prob. 2PSCh. 15.2 - Prob. 3PSCh. 15.2 - Prob. 4PSCh. 15.2 - Prob. 5PSCh. 15.2 - Prob. 6PSCh. 15.2 - Prob. 7PSCh. 15.2 - Prob. 8PSCh. 15.2 - Prob. 9PSCh. 15.2 - Prob. 10PSCh. 15.2 - Prob. 11PSCh. 15.2 - Prob. 12PSCh. 15.2 - Prob. 13PSCh. 15.2 - Prob. 14PSCh. 15.2 - Prob. 15PSCh. 15.2 - Prob. 16PSCh. 15.2 - Prob. 17PSCh. 15.2 - Prob. 18PSCh. 15.2 - Prob. 19PSCh. 15.2 - Prob. 20PSCh. 15.2 - Prob. 21PSCh. 15.2 - Prob. 22PSCh. 15.2 - Prob. 23PSCh. 15.2 - Prob. 24PSCh. 15.2 - Prob. 25PSCh. 15.2 - Prob. 26PSCh. 15.2 - Prob. 27PSCh. 15.2 - Prob. 28PSCh. 15.2 - Prob. 29PSCh. 15.2 - Prob. 30PSCh. 15.2 - Prob. 31PSCh. 15.2 - Prob. 32PSCh. 15.2 - Prob. 33PSCh. 15.2 - Prob. 34PSCh. 15.2 - Prob. 35PSCh. 15.2 - Prob. 36PSCh. 15.2 - Prob. 37PSCh. 15.2 - Prob. 38PSCh. 15.2 - Prob. 39PSCh. 15.2 - Prob. 40PSCh. 15.2 - Prob. 41PSCh. 15.2 - Prob. 42PSCh. 15.2 - Prob. 43PSCh. 15.2 - Prob. 44PSCh. 15.2 - Prob. 45PSCh. 15.2 - Prob. 46PSCh. 15.2 - Prob. 47PSCh. 15.2 - Prob. 48PSCh. 15.2 - Prob. 49PSCh. 15.2 - Problem Set. Level 2 Theron needs to purchase...Ch. 15.2 - Prob. 51PSCh. 15.2 - Prob. 52PSCh. 15.2 - Prob. 53PSCh. 15.2 - Prob. 54PSCh. 15.2 - Prob. 55PSCh. 15.2 - Prob. 56PSCh. 15.2 - Prob. 57PSCh. 15.2 - Prob. 58PSCh. 15.2 - Prob. 59PSCh. 15.2 - Prob. 60PSCh. 15.3 - Prob. 1PSCh. 15.3 - Prob. 2PSCh. 15.3 - Prob. 3PSCh. 15.3 - Prob. 4PSCh. 15.3 - Prob. 5PSCh. 15.3 - Prob. 6PSCh. 15.3 - Prob. 7PSCh. 15.3 - Prob. 8PSCh. 15.3 - Prob. 9PSCh. 15.3 - Prob. 10PSCh. 15.3 - Prob. 11PSCh. 15.3 - Prob. 12PSCh. 15.3 - Prob. 13PSCh. 15.3 - Prob. 14PSCh. 15.3 - Prob. 15PSCh. 15.3 - Prob. 16PSCh. 15.3 - Prob. 17PSCh. 15.3 - Prob. 18PSCh. 15.3 - Prob. 19PSCh. 15.3 - Prob. 20PSCh. 15.3 - Prob. 21PSCh. 15.3 - Prob. 22PSCh. 15.3 - Prob. 23PSCh. 15.3 - Prob. 24PSCh. 15.3 - Prob. 25PSCh. 15.3 - Prob. 26PSCh. 15.3 - Prob. 27PSCh. 15.3 - Prob. 28PSCh. 15.3 - Prob. 29PSCh. 15.3 - Prob. 30PSCh. 15.3 - Prob. 31PSCh. 15.3 - Prob. 32PSCh. 15.3 - Prob. 33PSCh. 15.3 - Prob. 34PSCh. 15.3 - Prob. 35PSCh. 15.3 - Prob. 36PSCh. 15.3 - Prob. 37PSCh. 15.3 - Prob. 38PSCh. 15.3 - Prob. 39PSCh. 15.3 - Prob. 40PSCh. 15.3 - Prob. 41PSCh. 15.3 - Prob. 42PSCh. 15.3 - Prob. 43PSCh. 15.3 - Prob. 44PSCh. 15.3 - Prob. 45PSCh. 15.3 - Prob. 46PSCh. 15.3 - Prob. 47PSCh. 15.3 - Prob. 48PSCh. 15.3 - Prob. 49PSCh. 15.3 - Prob. 50PSCh. 15.3 - Prob. 51PSCh. 15.3 - Prob. 52PSCh. 15.3 - Prob. 53PSCh. 15.3 - Prob. 54PSCh. 15.3 - Prob. 55PSCh. 15.3 - HISTORICAL QUEST In economics, the Laffer curve is...Ch. 15.3 - Prob. 57PSCh. 15.3 - Prob. 58PSCh. 15.3 - Prob. 59PSCh. 15.3 - Prob. 60PSCh. 15.4 - IN YOUR OWN WORDS What is a conic section?Ch. 15.4 - Prob. 2PSCh. 15.4 - Prob. 3PSCh. 15.4 - Prob. 4PSCh. 15.4 - Prob. 5PSCh. 15.4 - Prob. 6PSCh. 15.4 - Prob. 7PSCh. 15.4 - Prob. 8PSCh. 15.4 - Prob. 9PSCh. 15.4 - Prob. 10PSCh. 15.4 - Prob. 11PSCh. 15.4 - Prob. 12PSCh. 15.4 - Prob. 13PSCh. 15.4 - Prob. 14PSCh. 15.4 - Prob. 15PSCh. 15.4 - Prob. 16PSCh. 15.4 - Prob. 17PSCh. 15.4 - Prob. 18PSCh. 15.4 - Prob. 19PSCh. 15.4 - Prob. 20PSCh. 15.4 - Prob. 21PSCh. 15.4 - Prob. 22PSCh. 15.4 - Prob. 23PSCh. 15.4 - Prob. 24PSCh. 15.4 - Prob. 25PSCh. 15.4 - Prob. 26PSCh. 15.4 - Prob. 27PSCh. 15.4 - Level 2 Sketch the curves using the equations...Ch. 15.4 - Prob. 29PSCh. 15.4 - Prob. 30PSCh. 15.4 - Level 2 Sketch the curves using the equations...Ch. 15.4 - Prob. 32PSCh. 15.4 - Level 2 Sketch the curves using the equations...Ch. 15.4 - Prob. 34PSCh. 15.4 - Prob. 35PSCh. 15.4 - Prob. 36PSCh. 15.4 - Prob. 37PSCh. 15.4 - Prob. 38PSCh. 15.4 - Prob. 39PSCh. 15.4 - Prob. 40PSCh. 15.4 - Prob. 41PSCh. 15.4 - Prob. 42PSCh. 15.4 - Prob. 43PSCh. 15.4 - Prob. 44PSCh. 15.4 - Prob. 45PSCh. 15.4 - Prob. 46PSCh. 15.4 - Prob. 47PSCh. 15.4 - Prob. 48PSCh. 15.4 - Prob. 49PSCh. 15.4 - Prob. 50PSCh. 15.4 - Prob. 51PSCh. 15.4 - Prob. 52PSCh. 15.4 - Prob. 53PSCh. 15.4 - Prob. 54PSCh. 15.4 - Prob. 55PSCh. 15.4 - Prob. 56PSCh. 15.4 - A radar antenna is constructed so that a cross...Ch. 15.4 - Prob. 58PSCh. 15.4 - Prob. 59PSCh. 15.4 - Prob. 60PSCh. 15.5 - IN YOUR OWN WORDS What is a function?Ch. 15.5 - Prob. 2PSCh. 15.5 - Prob. 3PSCh. 15.5 - Prob. 4PSCh. 15.5 - Prob. 5PSCh. 15.5 - Prob. 6PSCh. 15.5 - Prob. 7PSCh. 15.5 - Prob. 8PSCh. 15.5 - Prob. 9PSCh. 15.5 - Prob. 10PSCh. 15.5 - Prob. 11PSCh. 15.5 - Prob. 12PSCh. 15.5 - Prob. 13PSCh. 15.5 - Prob. 14PSCh. 15.5 - Prob. 15PSCh. 15.5 - Prob. 16PSCh. 15.5 - Prob. 17PSCh. 15.5 - Prob. 18PSCh. 15.5 - Prob. 19PSCh. 15.5 - Prob. 20PSCh. 15.5 - Prob. 21PSCh. 15.5 - Prob. 22PSCh. 15.5 - Prob. 23PSCh. 15.5 - Prob. 24PSCh. 15.5 - Prob. 25PSCh. 15.5 - Prob. 26PSCh. 15.5 - Prob. 27PSCh. 15.5 - Prob. 28PSCh. 15.5 - Prob. 29PSCh. 15.5 - Prob. 30PSCh. 15.5 - Prob. 31PSCh. 15.5 - Prob. 32PSCh. 15.5 - Prob. 33PSCh. 15.5 - Prob. 34PSCh. 15.5 - Prob. 35PSCh. 15.5 - Prob. 36PSCh. 15.5 - Prob. 37PSCh. 15.5 - Prob. 38PSCh. 15.5 - Prob. 39PSCh. 15.5 - Prob. 40PSCh. 15.5 - Prob. 41PSCh. 15.5 - Prob. 42PSCh. 15.5 - Prob. 43PSCh. 15.5 - Prob. 44PSCh. 15.5 - Prob. 45PSCh. 15.5 - Prob. 46PSCh. 15.5 - Prob. 47PSCh. 15.5 - Prob. 48PSCh. 15.5 - Prob. 49PSCh. 15.5 - Prob. 50PSCh. 15.5 - Prob. 51PSCh. 15.5 - Prob. 52PSCh. 15.5 - Prob. 53PSCh. 15.5 - Prob. 54PSCh. 15.5 - Prob. 55PSCh. 15.5 - Prob. 56PSCh. 15.5 - Prob. 57PSCh. 15.5 - Prob. 58PSCh. 15.5 - Find the area of the square as a function of its...Ch. 15.5 - Prob. 60PSCh. 15.CR - Prob. 1CRCh. 15.CR - Prob. 2CRCh. 15.CR - Prob. 3CRCh. 15.CR - Prob. 4CRCh. 15.CR - Prob. 5CRCh. 15.CR - Prob. 6CRCh. 15.CR - Prob. 7CRCh. 15.CR - Prob. 8CRCh. 15.CR - Prob. 9CRCh. 15.CR - Prob. 10CRCh. 15.CR - Prob. 11CRCh. 15.CR - Prob. 12CRCh. 15.CR - Prob. 13CRCh. 15.CR - Prob. 14CRCh. 15.CR - Prob. 15CRCh. 15.CR - Prob. 16CRCh. 15.CR - Prob. 17CRCh. 15.CR - Prob. 18CRCh. 15.CR - Prob. 19CRCh. 15.CR - Prob. 20CR
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