EBK COLLEGE MATHEMATICS FOR TRADES AND
10th Edition
ISBN: 8220106960301
Author: Hobbs
Publisher: PEARSON
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Question
Chapter 18, Problem 8RE
To determine
The measures of the sides m and x.
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Microsoft Excel snapshot for random sampling: Also note the formula used for the last
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02
x✓ fx =INDEX(5852:58551, RANK(C2, $C$2:$C$51))
A
B
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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
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F
G
1
No.
States
Rand No. Random Sample
population
50
2
1 ALABAMA
0.5296685 NEW HAMPSHIRE
sample
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0.4493186 OKLAHOMA
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3 ARIZONA
0.707914 KANSAS
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4 ARKANSAS 0.4831379 NORTH DAKOTA
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5 CALIFORNIA 0.7277162 INDIANA
Random Sample
Sample Name
7
6 COLORADO 0.5865002 MISSISSIPPI
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7:ONNECTICU 0.7640596 ILLINOIS
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8 DELAWARE 0.5783029 MISSOURI
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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 18 Solutions
EBK COLLEGE MATHEMATICS FOR TRADES AND
Ch. 18.1 - Evaluate to the nearest tenth.
Ch. 18.1 - Prob. 2LCCh. 18.1 - Prob. 1ECh. 18.1 - Prob. 2ECh. 18.1 - Prob. 3ECh. 18.1 - Prob. 4ECh. 18.1 - Prob. 5ECh. 18.1 - Prob. 6ECh. 18.1 - Prob. 7ECh. 18.1 - Prob. 8E
Ch. 18.1 - Prob. 9ECh. 18.1 - Prob. 10ECh. 18.1 - Prob. 11ECh. 18.1 - Prob. 12ECh. 18.1 - Prob. 13ECh. 18.1 - Prob. 14ECh. 18.1 - Prob. 15ECh. 18.1 - Prob. 16ECh. 18.2 - Evaluate .
Ch. 18.2 - Prob. 2LCCh. 18.2 - Prob. 1ECh. 18.2 - Prob. 2ECh. 18.2 - Prob. 3ECh. 18.2 - Prob. 4ECh. 18.2 - Prob. 5ECh. 18.2 - Prob. 6ECh. 18.2 - Prob. 7ECh. 18.2 - Prob. 8ECh. 18.2 - Prob. 9ECh. 18.2 - Prob. 10ECh. 18.2 - Prob. 11ECh. 18.2 - Solve the problems. Round final answers to the...Ch. 18.2 - Prob. 13ECh. 18.2 - Prob. 14ECh. 18.2 - Prob. 15ECh. 18.2 - Prob. 16ECh. 18.2 - Prob. 17ECh. 18.2 - Prob. 18ECh. 18.2 - Prob. 19ECh. 18.2 - Prob. 20ECh. 18.2 - Prob. 21ECh. 18.2 - Prob. 22ECh. 18.2 - Prob. 23ECh. 18.2 - Prob. 24ECh. 18.2 - Prob. 25ECh. 18.2 - Prob. 26ECh. 18.2 - Prob. 27ECh. 18.2 - Prob. 28ECh. 18.3 - Prob. 1LCCh. 18.3 - Prob. 1ECh. 18.3 - Prob. 2ECh. 18.3 - Prob. 3ECh. 18.3 - Prob. 4ECh. 18.3 - Prob. 5ECh. 18.3 - Prob. 6ECh. 18.3 - Prob. 7ECh. 18.3 - Prob. 8ECh. 18.3 - Prob. 9ECh. 18.3 - Prob. 10ECh. 18.3 - Prob. 11ECh. 18.3 - Prob. 12ECh. 18.3 - Prob. 13ECh. 18.3 - Prob. 14ECh. 18.3 - Prob. 15ECh. 18.3 - Prob. 16ECh. 18.3 - Prob. 17ECh. 18.3 - Prob. 18ECh. 18.3 - Prob. 19ECh. 18.3 - Prob. 20ECh. 18.3 - Prob. 21ECh. 18.3 - Prob. 22ECh. 18.3 - Prob. 23ECh. 18.3 - Prob. 24ECh. 18.3 - Prob. 25ECh. 18.3 - Prob. 26ECh. 18.3 - Prob. 27ECh. 18.3 - Prob. 28ECh. 18.3 - Prob. 29ECh. 18.3 - Prob. 30ECh. 18.3 - Prob. 31ECh. 18.3 - Prob. 32ECh. 18.3 - Prob. 33ECh. 18.3 - Prob. 34ECh. 18.3 - Prob. 35ECh. 18.3 - Prob. 36ECh. 18.3 - Prob. 37ECh. 18.3 - Prob. 38ECh. 18.3 - Prob. 39ECh. 18.3 - Prob. 40ECh. 18.3 - Prob. 41ECh. 18.3 - Prob. 42ECh. 18.3 - Prob. 43ECh. 18.3 - Prob. 44ECh. 18.3 - Prob. 45ECh. 18.3 - Prob. 46ECh. 18.3 - Prob. 47ECh. 18.3 - Prob. 48ECh. 18.4 - Prob. 1LCCh. 18.4 - Prob. 1ECh. 18.4 - Prob. 2ECh. 18.4 - Prob. 3ECh. 18.4 - Prob. 4ECh. 18.4 - Prob. 5ECh. 18.4 - Prob. 6ECh. 18.4 - Prob. 7ECh. 18.4 - Prob. 8ECh. 18.4 - Prob. 9ECh. 18.4 - Prob. 10ECh. 18.4 - Prob. 11ECh. 18.4 - Prob. 12ECh. 18.4 - Prob. 13ECh. 18.4 - Prob. 14ECh. 18.4 - Prob. 15ECh. 18.4 - Prob. 16ECh. 18.4 - Prob. 17ECh. 18.4 - Prob. 18ECh. 18.4 - Prob. 19ECh. 18.4 - Prob. 20ECh. 18 - Prob. 1RECh. 18 - Prob. 2RECh. 18 - Prob. 3RECh. 18 - Prob. 4RECh. 18 - Prob. 5RECh. 18 - Prob. 6RECh. 18 - Prob. 7RECh. 18 - Prob. 8RECh. 18 - Prob. 9RECh. 18 - Find AB if (see Fig. 18–111).
Ch. 18 - Use Fig. 18–112 to solve the following exercises....Ch. 18 - Prob. 12RECh. 18 - Prob. 13RECh. 18 - Prob. 14RECh. 18 - Prob. 15RECh. 18 - Use Fig. 18–112 to solve the following exercises....Ch. 18 - Prob. 17RECh. 18 - Prob. 18RECh. 18 - Prob. 19RECh. 18 - Solve the following problems. Round the final...Ch. 18 - Prob. 21RECh. 18 - Prob. 22RECh. 18 - Prob. 23RECh. 18 - Prob. 24RECh. 18 - Prob. 25RECh. 18 - Prob. 26RECh. 18 - Prob. 27RECh. 18 - Prob. 28RECh. 18 - Prob. 29RECh. 18 - Use Fig. 18–115 to solve the following exercises....Ch. 18 - Prob. 31RECh. 18 - Prob. 32RECh. 18 - Prob. 33RECh. 18 - Prob. 34RECh. 18 - Prob. 35RECh. 18 - Solve. Round your final answers to the nearest...Ch. 18 - Prob. 37RECh. 18 - Prob. 38RECh. 18 - Prob. 39RECh. 18 - Prob. 40RECh. 18 - Prob. 41RECh. 18 - Prob. 42RECh. 18 - Prob. 43RECh. 18 - Prob. 44RECh. 18 - Prob. 45RECh. 18 - Prob. 46RECh. 18 - Prob. 47RECh. 18 - Prob. 48RECh. 18 - Prob. 49RECh. 18 - Prob. 50RECh. 18 - Prob. 51RECh. 18 - Prob. 52RECh. 18 - Prob. 53RECh. 18 - Prob. 54RECh. 18 - Prob. 55RECh. 18 - Prob. 56RECh. 18 - Prob. 57RECh. 18 - Prob. 58RECh. 18 - Prob. 59RECh. 18 - Prob. 60RECh. 18 - Prob. 61RECh. 18 - Find the distance between each pair of points....Ch. 18 - Prob. 63RECh. 18 - Prob. 64RECh. 18 - Prob. 65RECh. 18 - Prob. 66RECh. 18 - Prob. 67RECh. 18 - Prob. 68RECh. 18 - Prob. 69RECh. 18 - Prob. 70RECh. 18 - Prob. 71RECh. 18 - Prob. 72RECh. 18 - Prob. 73RECh. 18 - Prob. 74RECh. 18 - Prob. 1CACh. 18 - Prob. 2CACh. 18 - Prob. 3CACh. 18 - Prob. 4CACh. 18 - Prob. 5CACh. 18 - Prob. 6CACh. 18 - Prob. 7CACh. 18 - Prob. 8CACh. 18 - Prob. 9CACh. 18 - Prob. 10CACh. 18 - Prob. 1PTCh. 18 - Prob. 2PTCh. 18 - Prob. 3PTCh. 18 - Prob. 4PTCh. 18 - Prob. 5PTCh. 18 - Prob. 6PTCh. 18 - Prob. 7PTCh. 18 - Prob. 8PTCh. 18 - Prob. 9PTCh. 18 - Prob. 10PTCh. 18 - Prob. 11PTCh. 18 - Prob. 12PTCh. 18 - Prob. 13PTCh. 18 - Prob. 14PTCh. 18 - Prob. 15PTCh. 18 - Prob. 16PTCh. 18 - Prob. 17PTCh. 18 - Prob. 18PTCh. 18 - Prob. 19PTCh. 18 - Prob. 20PTCh. 18 - Prob. 1CPTCh. 18 - Prob. 2CPTCh. 18 - Prob. 3CPTCh. 18 - Prob. 4CPTCh. 18 - Prob. 5CPTCh. 18 - Prob. 6CPTCh. 18 - Prob. 7CPTCh. 18 - Prob. 8CPTCh. 18 - Prob. 9CPTCh. 18 - Prob. 10CPTCh. 18 - Prob. 11CPTCh. 18 - Prob. 12CPTCh. 18 - Prob. 13CPTCh. 18 - Prob. 14CPTCh. 18 - Prob. 15CPTCh. 18 - Prob. 16CPTCh. 18 - Prob. 17CPTCh. 18 - Prob. 18CPTCh. 18 - Prob. 19CPTCh. 18 - Prob. 20CPTCh. 18 - Prob. 21CPTCh. 18 - Prob. 22CPTCh. 18 - Prob. 23CPTCh. 18 - Prob. 24CPTCh. 18 - Prob. 25CPTCh. 18 - Prob. 26CPTCh. 18 - Prob. 27CPTCh. 18 - Prob. 28CPTCh. 18 - Prob. 29CPTCh. 18 - Prob. 30CPTCh. 18 - Prob. 31CPTCh. 18 - Prob. 32CPTCh. 18 - Prob. 33CPTCh. 18 - Prob. 34CPTCh. 18 - Prob. 35CPTCh. 18 - Prob. 36CPTCh. 18 - Prob. 37CPTCh. 18 - Prob. 38CPT
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