Test 3 Review Sheet Math 121
1.
Fall 2015
Solve for x using the quadratic formula.
a)
3x2 = 7x 1
b)
x2 - 4x = 12
5x2 + 2x + 1 = 0
c)
2.
A small rocket is fired into the air from the edge of a platform that is 4 feet above the ground with
an initial veloci

D Mc
Voltage (VDC) Torque (Ncm) Predicted Torque
0.153592
5.12
0.14
0.215512
6.32
0.27
0.352768
8.98
0.28
0.429652
10.47
0.42
0.490024
11.64
0.53
0.27382
7.45
0.547816
12.76
8.9263565891
0.35
252.1434108527
12.9
The predicted torque for a voltage of 7.45

2. A small rocket is fired into the air from the edge of a platform that is
4 feet above the ground with an initial velocity of 48 feet per second.
The vertical distance that the rocket travels is described by the
function
h(t) = -16t2+ 48t + 4.
A) What i

Review Sheet Test 1 Math 121
1. Given:
f(x) =
a) h(-2)
x3,
Summer 2015
g(x) = 2x 7,
f
b) (g f)(x)
c) (6)
g
h(x) = x2 - 2x-3
Find:
d) Domain of f(x) and (f/g)(x).
e) Use Excel to set up a table of values and graph f(x), g(x) and h(x).
2. State the domai

Group Activity 1 - Free Fall (Online)
Over three centuries ago, Galileo reasoned the rules for objects falling would be very
simple as long as air resistance is considered relatively unimportant. By guessing what
would happen in the imaginary case of obje

Round:
Degrees to 0.1 and
Radians to 0.001
Review Test 4 Math 121
Fall 2015
1)
a) Given 212
i) Convert to radians. ii) State what quadrant the terminal side of the angel is located in.
iii) Find two conterminal angles (one negative and one positive).
b) G

Excel Labs
Description
There are several Excel Labs required for the course. Each Lab is designed to:
1 provide instruction on how to perform calculations and work with data using Excel,
2. expand on topics covered in class through the use of Excel,
3. de

Test 3 Review Sheet Math 121
1.
Fall 2015
Solve for x using the quadratic formula.
a)
3x2 = 7x 1
b)
x2 - 4x = 12
5x2 + 2x + 1 = 0
c)
2.
A small rocket is fired into the air from the edge of a platform that is 4 feet above the ground with
an initial veloci

Project 2 - Timber Lab
Student Overview
North Carolina produces a lot of lumber each year from its public and private forest land.
Suppose you were a tree farmer and you wanted to know just how much lumber you could
harvest from your land. Or perhaps you

Review Sheet Test 1 Math 121
1. Given:
f(x) =
a) h(-2)
x3,
b) (g f)(x)
e) (g h)(x)
Fall 2015
g(x) = 2x 7,
f
c) (6)
g
h(x) = x2 - 2x-3
Find:
d) Domain of f(x) and (f/g)(x).
f) (h*g)(-3)
g) Use Excel to set up a table of values and graph f(x), g(x) and h

Name: _
MAT 121 Final Exam Review
1. Angela owns a plot of land in the shape of the trapezoid as shown in the figure below.
a. Angela wants to fence in the entire plot of land. How many millimeters of fence will she need?
b. Once she builds the fence, she

Excel Lab 1 Introduction to Excel
Introduction to Excel
In this class we will be using electronic spreadsheets to explore some of the mathematical concepts
and applications that we are studying in class. The goal of the use of the spreadsheet is to enable

MAT 121 Final Exam Review
Find the values for x, y and z. Identical marks on segments or angles indicate that they are congruent.
1.
2. In the figure below lines BD and AE are parallel and
. What is the measure of AB?
Find the area and perimeter.
3.
4. Fi

MAT 121
Chapter 4
The Trigonometric Functions
Section 4.1
Angles
2
Angle Measure
Two ways in which angles are measured are degrees
and radians.
3
Radian Angle Measure
If the length of the radius is marked off along the edge of
a circle, the central angle

1ng Mittkg; 21/6: [duet-r .799 f 1! Matte psi; id;- 2 Man
Systems of Equations Applications
1. Susie deposits $6,700 into two different savings accounts. The rst account earns 2% interest and the
second account earns 1.5% interest. At the end of one year,

fSCAuIoAs
NLAT 121 - A lications of Linear Functions
Example Problem: 5 eed on a Hill Problem. Assume that the maximum speed your car will go varies
linearly with the steepness ofthe hill it is climbing or descending. For example, ifthe hill is 5 up,

MAT 121 Right Triangle Trigonometry Name: ti MCIQLV'J
g.
i. Solve for x. Boggd all answers to two decimal places. Show all work. 7% 41 3? i . ~
i1 it c Q- 1
1- a new New : of 2.
32.80 Thig CL 27C 1W2: 27 cfw_5'36
r lye? it is its.?333
44.60 5. 43 " iari

MAT 121
I.
Right Triangle Trigonometry
Name: _
Solve for x. Round all answers to two decimal places. Show all work.
1.
2.
x
32.80
x
42
44.60
3.
4.
200.00
x
0.24
II.
22.00
34.00
41
123.00
x
Draw a picture and solve the following right triangle problems. Ro

put your name and cell A1 and if you need to wrap text
then we are going to enter some data into excel: create a scatter plot, a
trend line, and then make some predictions
you want to click on View and then click page layout
in cell A3 we're going to type

Review Sheet Test 1 Math 121
1. Given:
f(x) =
a) h(-2)
x3,
b) (g f)(x)
e) (g h)(x)
Fall 2015
g(x) = 2x 7,
f
c) (6)
g
h(x) = x2 - 2x-3
Find:
d) Domain of f(x) and (f/g)(x).
f) (h*g)(-3)
g) Use Excel to set up a table of values and graph f(x), g(x) and h

Review Sheet Test 2
1.
MAT 121
Fall 2015
Solve for the indicated variable:
a.
5 m - q = r m + c, for m.
c.
6a b
a,
f 1
i) for f ii) for a
iii) for b
b.
2 3
5,
d e
d.
Solve x =
for e.
y 2 - y1
for z.
z4
2.
Given the points A: (2, 5) and B: (-3, 2) find:
a

Review Test 4
Round:
Degrees to 0.1 and
Radians to 0.001
Math 121 Fall 2015
1)
a) Given 212
i) Convert to radians.
ii) State what quadrant the terminal side of the angle is located in.
iii) Find two coterminal angles (one negative and one positive).
b) Gi

It seems some of you are having a little difficulty with the more complicated
conversions. This particular conversion comes off of your review sheet. With
something like this where you're converting something per something to
something else per something

[Silence]
Excel Lab 1 is an introduction to Excel,
before we get started what we need to do is change our view to the page layout view.
This will help you see all the page breaks,
while you are working
so that your graphs and tables don't hang off the pag

Practice 3 Solution
1. Write a query that produces the following for each employee:
<employee name> earns <salary> monthly but wants <3 times salary>. Label the column
Dream Salaries. Sort the rows in descending of Dream Salary.
Example, Ward earns 1250 m

MAT 121
Checklist for the week of January 19th January 25th
NOTE: Test 1 is scheduled for Tuesday Wednesday, January 31st February 1st next
week. You will take all tests in one of the four testing centers of your choice (on the Western
Wake campus, Main C

In Excel lab 2 we'll start again by putting our name in cell A1.
Wrap text if you need to,
and then changing our view to page layout view.
Now we can get started.
We want to graph functions using Excel.
Our first function as a linear function
and there ar

Guidelines for Determining Which Digits Are Significant
All nonzero digits are significant.
Zero digits that lie between significant digits are significant.
For example, 2034 has four significant digits.
Zero digits that lie to the right of both the d

Rearranging Formulas
Name:_
Solve the given formula for the indicated variable. You must show all work.
1.
A r 2 ,solvefor r
2. Q
cd
, solve for d .
2
3. Q = 3a + 5ac, solve for a
4. F
5.
Gm1m2
, solve for m2
d2
1 1 1
, solve for q
r p q