Contemporary Mathematics For Business & Consumers, Brief Edition, Loose-leaf Version
8th Edition
ISBN: 9781305867192
Author: Robert Brechner, Geroge Bergeman
Publisher: South-Western College Pub
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Chapter 5, Problem 13CR
To determine
To fill: The blanks provided for the statement “A mathematical statement showing that two ratio are equal is known as a(n).”
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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 5 Solutions
Contemporary Mathematics For Business & Consumers, Brief Edition, Loose-leaf Version
Ch. 5.I - Solve the following equations for the unknown and...Ch. 5.I - Prob. 2TIECh. 5.I - Prob. 3TIECh. 5.I - Prob. 4TIECh. 5.I - Solve the following equations for the unknown and...Ch. 5.I - Prob. 6TIECh. 5.I - Prob. 7TIECh. 5.I - Prob. 8TIECh. 5.I - Prob. 9TIECh. 5.I - For the following statements, underline the key...
Ch. 5.I - Prob. 1RECh. 5.I - Prob. 2RECh. 5.I - Prob. 3RECh. 5.I - Prob. 4RECh. 5.I - Prob. 5RECh. 5.I - Prob. 6RECh. 5.I - Prob. 7RECh. 5.I - Prob. 8RECh. 5.I - Prob. 9RECh. 5.I - Prob. 10RECh. 5.I - Prob. 11RECh. 5.I - Prob. 12RECh. 5.I - Prob. 13RECh. 5.I - Prob. 14RECh. 5.I - Prob. 15RECh. 5.I - Prob. 16RECh. 5.I - Prob. 17RECh. 5.I - For the following statements, underline the key...Ch. 5.I - Prob. 19RECh. 5.I - Prob. 20RECh. 5.I - Prob. 21RECh. 5.I - Prob. 22RECh. 5.I - Prob. 23RECh. 5.I - Prob. 24RECh. 5.I - For the following statements, underline the key...Ch. 5.I - Prob. 26RECh. 5.I - Prob. 27RECh. 5.I - Prob. 28RECh. 5.I - Prob. 29RECh. 5.I - Prob. 30RECh. 5.I - For the following statements, underline the key...Ch. 5.I - Grouping symbols are used to arrange numbers,...Ch. 5.II - Don and Chuck are salespeople for Security One...Ch. 5.II - One-third of the checking accounts at the...Ch. 5.II - Prob. 13TIECh. 5.II - Prob. 14TIECh. 5.II - Last week Comfy Cozy Furniture sold 520 items. It...Ch. 5.II - REI (Recreational Equipment Incorporated) sells a...Ch. 5.II - Prob. 17TIECh. 5.II - Prob. 1RECh. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Prob. 4RECh. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Prob. 16RECh. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Prob. 22RECh. 5.II - Prob. 23RECh. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Prob. 25RECh. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - 30. In a move to provide additional sales for U.S....Ch. 5 - A(n) ______ is a mathematical statement describing...Ch. 5 - A mathematical statement expressing a relationship...Ch. 5 - Prob. 3CRCh. 5 - Prob. 4CRCh. 5 - The numerical value of the unknown that makes an...Ch. 5 - Prob. 6CRCh. 5 - 7. To transpose means to bring a term from one...Ch. 5 - Prob. 8CRCh. 5 - 9. To prove the solution of an equation, we...Ch. 5 - Prob. 10CRCh. 5 - Prob. 11CRCh. 5 - 12. A comparison of two quantities by division is...Ch. 5 - Prob. 13CRCh. 5 - Prob. 14CRCh. 5 - Prob. 1ATCh. 5 - Prob. 2ATCh. 5 - Solve the following equations for the unknown and...Ch. 5 - Prob. 4ATCh. 5 - Prob. 5ATCh. 5 - Prob. 6ATCh. 5 - Prob. 7ATCh. 5 - Prob. 8ATCh. 5 - Prob. 9ATCh. 5 - Prob. 10ATCh. 5 - For the following statements, underline the key...Ch. 5 - Prob. 12ATCh. 5 - Prob. 13ATCh. 5 - Prob. 14ATCh. 5 - Prob. 15ATCh. 5 - For the following statements, underline the key...Ch. 5 - Prob. 17ATCh. 5 - Prob. 18ATCh. 5 - Set up and solve equations for each of the...Ch. 5 - Set up and solve equations for each of the...Ch. 5 - Prob. 21ATCh. 5 - Set up and solve equations for each of the...Ch. 5 - Prob. 23ATCh. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Prob. 30ATCh. 5 - Use ratio and proportion to solve the following...Ch. 5 - Use ratio and proportion to solve the following...Ch. 5 - Use ratio and proportion to solve the following...Ch. 5 - 34. One special type of ratio is known as a rate....
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- Suppose the Internal Revenue Service reported that the mean tax refund for the year 2022 was $3401. Assume the standard deviation is $82.5 and that the amounts refunded follow a normal probability distribution. Solve the following three parts? (For the answer to question 14, 15, and 16, start with making a bell curve. Identify on the bell curve where is mean, X, and area(s) to be determined. 1.What percent of the refunds are more than $3,500? 2. What percent of the refunds are more than $3500 but less than $3579? 3. What percent of the refunds are more than $3325 but less than $3579?arrow_forwardFind the indefinite integral. Check Answer: In(5x) dx xarrow_forwardHow to solve 2542000/64132 without a calculator?arrow_forward
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