JaShada Dillard-Tyler
Problem # 20
Incorrect solution:
5( +3)4(2 1)
5^2 +3 8 +4
5^2 5 +4
Correct solution:
5( +3)4(2 1)
5x^2 + 15x -8x^2 + 4
5x^2 + 7x + 4
The mistake was made in the 2nd step. The 5x was not multiplied by 3. All numbers in parentheses sho
MA1210: Module 4 Functions and Their Graphs
Lab 4.1
Transformation, Composite, and Inverse Functions
This lab includes problems based on graphing various functions and application problems involving the slope
and equations of lines.
Recommended Procedures
MA1210: Module 2 Fundamentals of Algebra, Part 2
Lab 2.1
Polynomials and Rational Expressions
Throughout this course you will be analyzing polynomials and their properties. This lab includes factoring
exercises of many different types of polynomials. Addi
MA1210: Module 5 Polynomial and Rational Functions
Lab 5.1
Rational Functions and Inequalities
This lab requires you to find the maximum area, use synthetic division to find zeros of a polynomial, and use
the remainder theorem to evaluate a polynomial fun
1a.
y = 20000 2800x
1b.
x = 5 years
Y = 20000-2800(5)
Y = 20000 14000
Y = 6000
Yes, my calculations matched.
2a.
Plan A = 45x
Plan B = 15 + 0.10y
2b.
15 + 0.10y>45
Y = 300
15 + 0.10(300)
15 + 30 = 45
300 calls equals to $45, the same amount as Plan A. The
1. We often use graphs of recent data to project what future
data may bring. The following is the graph of a cars value.
The car was purchased for $20,000. Each year, the cars value decreases by $2,800.
We can use this to project what the car will be wort
School of Information Technology
1. The following formula estimates the number of Facebook users, in millions, since
2008. Assume this trend continues and use the following formula to find the projected
amount of Facebook users in the year 2020. (x repres
School of Information Technology
1. The following formula describes a large companys number of viruses, V, on
employee computers. The variable, t, is time, in years, since 2002. Answer the
following questions showing all of your work.
V = 5 t + 12
a. How
School of Information Technology
1. The following quadratic equation describes the average RAM installed, y, in
Gigabytes, on PCs t years after 2000. y=0.022x2 + 0.25
a. Find the average RAM installed on PCs in the year 2007.
y = 0.022(72) + 0.25
y = 0.02
1
1. Apple packet calories =x, brownie calories = y
2x+y=700, x+4y=1400
x=700-2x
x+4(700-2x)=1400
x+2800-8x=1400
-7x+2800=1400
1400=7x
200=x
Apples have 200 calories and the brownies have 300 calories.
2. 150 rooms, $80/night with service, $60/night witho
1
1. C = 3x+5, min = 50, max = 80
C = 3x+5
X = (c-5)/3
X = (50-5)/3
X = 45/3
X = 15
C = 3x+5
X = (c-5)/3
X = (80-5)/3
X = 75/3
X = 25
Minimum number of items Jerry can buy are 15 and the maximum number of items
are 25.
2. F(x) = -x^2 + 2x + 2 = 0
x^2 - 2x
Week 1: Exercise 1
10/26/2015
School of Information Technology:
1. The following formula estimates the number of Facebook users, in millions,
since 2008. Assume this trend continues and use the following formula to find
the projected amount of Facebook us
Elyse Segebart
MA1210 College Mathematics
Module 3 Exercise
1. Between 15 and 25 items
2. X = 2.732
3. F(x) = -1600
4. F(6) = 128
5. Items Sold = 2000
6. Value = 2500
7. 8.25 meters is max @ 1.5
8. X = 196, y = 14
9. W = 1.5 inches L = 8 inches
10. W = 1.