20 POINTS

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Chapter
7-8
5
10
15
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Chapter
9
5
10
15
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Chapter
1-2
Chapter
3-4
Chapter
5-6
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Team One
0
Team Three
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Team Five
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Team Two
0
Team Four
0
Team Six
5 POINTS
Are these equations Parallel,
Coincident, or do they intersect?
2x+3y=6
4x+6y=0
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5 POINTS
PARALLEL
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10 POINTS
Sweet delight candies has a fixed
cost of $300. Each lb of candy
produced costs $1 and is sold for
$2. What is the break even point?
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10 POINTS
x + 300 = 2x
-x
-x
300 = x
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15 POINTS
Solve:
a + b + c + d = 20
a+b+c=0
c + d = 13
b – 2d = -5
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15 POINTS
a = -28
b = 35
c = -7
d = 20
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20 POINTS
Analyze in Echelon Form:
103 0
012 0
000 1
000 0
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20 POINTS
No Solution!
x + 3z = 0
y + 2z = 0
0=1
0=0
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25 POINTS
Solve:
x–y+z=8
2x + 3y – z = -2
3x -2y -9z = 9
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25 POINTS
X=4
Y=-3
Z=1
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5 POINTS
Find the line of best fit:
1975 44,676
1980 143,756
1985 371,571
1990 578,930
1995 1,071,029
2000 1,998,034
2005 2,632,655
2009 3,240,000
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5 POINTS
y = 96939.29x –
191879351.5
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10 POINTS
Find A x B:
A= [ 1 5 3 ] B= 2
-1
4
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10 POINTS
9
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15 POINTS
Graph the Inequality:
X<3
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15 POINTS
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20 POINTS
Graph:
2x + 3y > 6
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20 POINTS
y > -2/3x + 2
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25 POINTS
Solve AB:
A
12
3
9
6
B
73
189
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25 POINTS
12(73) + 3(189)
9(73) + 6(189)
1443
1791
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5 POINTS
What interest uses the formula
A=P ( 1 + r/n)nt
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5 POINTS
Compound Interest
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10 POINTS
Find the simple interest owed
on $8,537 at 10% for 8
months.
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10 POINTS
8,537 x .10 x (8/12) =
$569.13
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15 POINTS
Find the constraint:
P = 400a + 100b + 200c + 300d
a + b < 600
c + d < 400
a + c > 500
b + d > 300
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15 POINTS
P a b c d s1 s2 s3 s4 RHS
S1
0 1 1 0 0 1
0
0
0
600
S2
0 0 0 1 1 0
1
0
0
400
S3
0 -1 0 -1 0 0
0
1
0 -500
S4
0 0 -1 0 -1 0
0
0
1 -300
P
0 400 100 200 0 0 0
0
R3,C2=>
R4,C3=>
R1,C4=>
R2,C6
0
P=150,000 a=100 b=300
c=400 d=0
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20 POINTS
Find the value of annuity
when $200 is deposited each
month at 10% interest (
compounded monthly ) for 20
years.
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20 POINTS
200 ( 1 + .1/12) ^240 -1
.1/12
$151,873.77
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25 POINTS
Solve the constraint:
P = 2x + y + 3z
2x + 3y + 4z > 20
4x + 2y + 2z > 15
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25 POINTS
P = 15/2
X = 5/8
Y = 25/4
Z=o
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5 POINTS
Find the value of the expression:
C(3,1)
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5 POINTS
*one choice of three
3x1
3
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10 POINTS
How many different vertical
arrangements are possible for 10
flags if 2 are white, 3 are red, and
five are blue?
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10 POINTS
10!
2!3!5!
= 2,520
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15 POINTS
Mark, Marcus, and Mike all have
separate birthdays. If listed all
the ways possible this could
occur, how many would there be?
Assume that there are 365 days in
a year.
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15 POINTS
365 x
364
x
363
= 48, 228, 180
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20 POINTS
Describe a sample space for an
experiment of selecting one
family from the set of all possible
three-child families.
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20 POINTS
(B,B,B)
(G,B,B)
(B,B,G)
(G,B,G)
(B,G,B)
(G,G,B)
(B,G,G)
(G,G,G)
8 Choices
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25 POINTS
Standard license plates in the
state of South Carolina consist of
three letters of the alphabet
followed by three digits. How
many will have all their distinct
digits?
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25 POINTS
26
L
26
26
10
L
L
D
9
D
8
D
= 12, 654, 720
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5 POINTS
Tell what the variable is, and then
whether it is discrete or
continuous.
- Count the # of defective parts
produced by a certain machine in
an hour.
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5 points
Variable = Defective Parts
- Discrete
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10 POINTS
Is this graph:
A) Bell-shaped
C) Skewed right
B) Uniform
D) Skewed left
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10 POINTS
C
- There are more outcomes
clustered at one end while
fewer values on the right side
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15 POINTS
A set of 750 scores are
normally distributed. How
many scores would you
expect to find between 2
standard deviations above and
below the mean?
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15 POINTS
.95 x 750 =
712.5 scores
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20 POINTS
Given a normal distribution
with a mean of 9 and standard
deviation of 2, find the z-score
for 13.
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20 POINTS
13 – 9/2 =
2
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25 POINTS
Find the normalcdf between 30
and 52 with a mean of 40, and a
standard deviation of 2.
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25 POINTS
30-40/5 = -2
52-40/5 = 2.4
normalcdf (-2,2.4) =
.96905
96.9%
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“Big Points”
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Question
What was the name of
the district Miss Raven
taught at before Basha
High School?
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Big Points
Kyrene School
District
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