Unit 3: Systems of Equations and Matrices Discussion Board Problems
3.1 Systems of Two Linear Equations in Two Variables
A.
Solve the system by graphing (by hand or with Excel)
3x +5y = 46
7x y = 6
B.
Solve the system by graphing (by hand or with Excel)
4

Probability of dependent events
see explanation
An automobile manufacturing plant produced vehicles today: were sedans, were
do it on paper
vans, and were trucks. Plant managers are going to choose two of these vehicles for
thorough inspection. The first

Running head: BSN SALARY ANALYSIS 1
Statistical Analysis of BSN Salary
Student Name
MTH 140
ECPI UNIVERSITY
BSN SALARY ANALYSIS 2
Introduction
The purpose of this study is to calculate and discover the mean (average) salary of new graduate
registered nurs

Smartphone Survey
1. Do color options on certain smartphones influence your decision?
Yes
No
2. If you had to choose between Galaxy 5 or IPhone 5 what would you choose?
Galaxy
IPhone
3. IPhone is only available in one color but the Galaxy is available in

Topic:
Colors on smart phones increase sales
Hypothesis:
If you offer more colors on smartphones you will get better sales results for between
Android and Apple devices.
Variables:
The independent variable is the more colors available on smart phones. The

MATH 140
The Logistic Project
ERAU
Pure exponential growth is not a real-world phenomenon except for short periods of time.
There are apocryphal stories similar to one involving a king, a wise man and a chessboard in
which the wise man tricks the king int

MATH 140
Ch. 8 Sec 8.2
Q: 6
1. 2x +y-2z=-1
2. 3x-3y-z = 5
3. x-2y+3z = 6
You have your three equations to solve this equations.
First use two of the equations to get a fourth
We will then use 1. and 2. To find the fourth equation.
1.
2x+y-2z=-1
leave this

Rene Descartes Contributions to Mathematics
Rene Descartes made many contributions to mathematics and modern mathematics.
One, he provided a basic form of calculus. Two, he separated math from science so a
difference between them will be known. He also cr

Logistics problems 7-8
First to figure out c y(0) is given by courtesy
Y(0)=4e-05
Substitute
C=ln(4e-05/1-4e-05)
C=-3.59
Task 7
Infection rate per day is 15% or 0.0015
To find when half the population would be infected
0.5/0.0015=333.33.
333 days rounded

Do colors influence choice
Person
Age
Mag
Decker
Brian
Rod
Mat
Juan
Susana
Damaris
Jason
Emily
Ruben
Luis
Chava
Johnathon
Bella
31
23
34
34
30
43
30
18
28
26
40
20
13
16
21
Device of Choice
Galaxy
IPhone
IPhone
IPhone
IPhone
IPhone
IPhone
Galaxy
Galaxy
Ga

Topic:
Colors on smart phones increase sales
Hypothesis:
If you offer more colors on smartphones you will get better sales results for between
Android and Apple devices.
Variables:
The independent variable is the more colors available on smart phones. The

Runninghead: Kansas City Chiefs vs. Oakland Raiders1
Kansas City Chiefs vs. Oakland Raiders
Amy Shipman
Math 140
ECPI University
Kansas City Chiefs vs. Oakland Raiders
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
Mean
Median
Mode
Standard Deviation
2

MASS KILLINGS IN THE U.S.
0
Mass Killings in the U.S.
Jaziz Marquez
ECPI
0
MASS KILLINGS IN THE U.S.
1
Mass Killings in the U.S.
Part A
Mass killings are to the horror frequent in the U.S. The purpose of this paper is to analyze the
bloody scenes during t

Running head: FOOD ALLERGIES
1
Food Allergies: How to Keep Children Safe
Student 1
Student 2
Student 3
ECPI, MCI School of Health Sciences
Certificate of Original Authorship
We certify that we are the sole authors of this paper. Any information in this pa

Jean Yawkey Place Policy and Procedure Manual
SAMPLE Infection Control Policies from Barbara McInnis
House
POLICY:
POLICY:
POLICY:
POLICY:
POLICY:
POLICY:
INFECTION CONTROL.2
INFECTIONS THAT REQUIRE AIRBORNE TRANSMISSION PRECAUTIONS.8
PROTOCOL FOR AIRBORN

Chesapeake Public Schools
Statistical Analysis of Chesapeake Public School Budget vs. Enrollment
Christina Reyna
MAT 140
ECPI University
Chesapeake Public Schools
2
Introduction
The City of Chesapeake, in The Hampton Roads area of Virginia, has some of
th

Statistical Analysis of . U. S. Bottle Water Market Per Capita Consumption Gallons Per Capita
between 2004 and 20014
Lizzie Jeter
MTH140
ECPI University
Introduction
Initially my topic was on the average price of a 6 pack of Pepsi at several stores in my

Running head: SHORT TITLE OF PAPER (<= 50 CHARACTERS)
Breaking down childhood discipline
Octavia Davis
Math 140 statistics
Making a choice.
How should parents raise their children? Given the critical importance of the first few
years and even months of li

MTH140: Statistics B. Makkawi
Manirakiza Joselyne
Project D
9/22/2016
Introduction
The topic I have chosen is a statistical analysis of Huggies Diaper. Huggies have a more
artificial, plastic-like feel to the outside. They are fastened using sticky strips

MBA Salary in 10 Cities
Kayla Griffith
ECPI University
Part One
Sampling: I received my data from Payscale, the Bureau of Labor & Statistics, and Indeed. Each
of these sources uses their own individual methods of collecting data.
Data:
Charts:
*Both chart

Jason Day Wins Analysis
Statistical Analysis of Tour Events and Wins by Jason Day
Jeffry Smith
MTH140
ECPI University
Jason Day Wins Analysis
Introduction
The topic I have chosen is a statistical analysis of PGA Professional Jason Day. I will be looking a

1
Pharmacy Technician Salary Analysis
Statistical Analysis of Salary for Pharmacy Technicians
Alana Austin-Payne
MTH140
ECP University
2
Pharmacy Technician Salary Analysis
Introduction
In my project I chose to research the average salary of pharmacy tech

Page 1 of 6
Running Head: Panther Win Analysis
Statistical Analysis of Panthers Wins
Bryan Cummins
MTH140
ECPI University
Page 2 of 6
Running Head: Panther Win Analysis
Introduction
The purpose of this paper is to calculate the average amount of wins the

Running head: Salary of a Project Coordinator
Statistical Analysis of Salaries of a Project Coordinator in 10 States
Kimberly Landry
MTH140
ECPI University
1
Running head: Salary of a Project Coordinator
Introduction
The purpose of this study is to show t

Running head: P3
1
Project part 3
Charles T. Wood
ECPI
P3
2
Introduction
The purpose of this study is to calculate and discover the mean (average) pay rates of IT
graduates. Pay rates do vary from state to state so these other states will indeed be in the

Running Head: Warriors Statistical Analysis
Statistical Analysis of the Golden State Warriors
Jonathan Perez
MTH140
ECPI University
Perez 1
Running Head: Warriors Statistical Analysis
Perez 2
Introduction
The purpose of this analysis is to calculate the a

Similac Advance Price Analysis
Statistical Analysis of Similac Advance Price
Sharon Towell
MTH 140
ECPI University
Similac Advance Price Analysis
Introduction
In my research I found the price of Similac Advance powder baby formula from 10 different
stores