Math 33201 | Quiz 2| Oct. 7, 2010 1
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Signature: Student ID:m
Instructions: Show work for full credit. No notes, calculators, hats, cell phones, HUD lenses, or
aids of any kind. 15-minute time limit. BX signing xour name you ag
Probability
1. a) Write out the sample space when flipping one coin. H, T
b) What is the probability of flipping a head? 1 2
c) What is the probability of flipping a tail? 1 2
2. a) Write out the sample space when flipping two coins. HH, HT, TH, TT
b) Wha
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.Math 332-01 | Quiz 1 | Oct. 7, 2010 1
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Instructions: Show work for full credit. No notes, calculators, hats, cell phones, trained parrots, or
aids of an kind. 15-minute time limit. B si nin our name
Synthetic Substitution
a) Use synthetic substitution to find the value of the function:
1. if f (x) = x 3 6x 2 + 11x 6, determine f (3), f (1), f (2), and f (4)
2. if g(x) = 2x 5 3x 4 + 2x 2 x + 8, determine g(3), g(1), g(3), and g(5)
3. if P(x) = x 5 10x
Math 45 Linear Algebra
September 17, 2010
Quiz #22
Name: Answer Key
David Arnold
Instructions. (12 points) Do your work in the space provided.
(2pts )
ea.
1. Given |A| = 5 and A has size 3 3, evaluate each of the following:
(a) | 2A| =
Solution: Matrix A
Probability
1. A box contains 3 baseballs, 7 softballs and 11 tennis balls.
i) What is the probability that a ball selected at random will be:
11
3
7
a) a tennis ball?, T =
b) a baseball?, B =
c) a softball? S =
21
21
21
ii) If two balls are selected at r
Polynomial Function Exam
Equation
x 3 + 5x 2 + 3x -9 x 4 -10 x 3 + 24 x 2 + 10 x -25
1. degree of equation
3
4
2. the value of the
-9
-25
1
1
-9
-25
Lower left
Upper left
Upper right
Upper Right
constant
3. the value of the
leading coefficient
4. the valu
Unit 1C/2A Matrices TEST REVIEW KEY
Solve for x and y
1)
=
2)
x = 1.5, y = 3
=
x = 1, y = 1
3)
4)
X = 15, y = 4
x = -9, y = 7
Evaluate the following if possible using these given matrices:
E=
H=
5. E + F
F=
G=
J=
E = 3x2, F = 2x3, G = 2x2
K=
6. EF
7. FE
N
Inverses and Reciprocals Quiz
Determine the inverse for each of the following:
1. 3x + 4 y = 6
2. y = 2 x 2 3 x + 1
3y + 4x = 6
4x + 3y = 6
x = 2 y2 3 y +1
4. x -3 5 6
y 2 -4 -9
3. 5 x 3 + 2 y 2 = 40
3
2
+2 x 2 = 40 5 y + 2 x = 40
2 x2
2 x 2 + 5 y 3 = 40
Inverse Relations :
A. Solve each of the following equations for one positive y:
5x 3
1. 5x + 3y = 3 y =
3
3x 3
2. 3x + 5y = 3 y =
5
2
2
3. y + x = 6 y = x + 6
5. 3x 2 + 4y 2 = 12 y =
-3x 2 + 12
2
6. 4x 2 + 3y 2 = 12 y =
4x 2 + 12
3
7. y x 3 = 6 y = x
Applied Math 247
Exam #1: Summer 2010
Answer the questions in the spaces provided on the question sheets. If you run out of room for an
answer continue on the back of the page. No notes, books, or other aids may be used on the exam.
Student Id:
1.
(5 poin
Probability
1. A jar contains 4 blue, 6 green, 5 red and 1 yellow marble. If one marble is drawn at
random from the jar, find the probability that the marble is:
4
12
5
11
a) blue B =
b) not blue B =
c) red R =
d) not red R =
16
16
16
16
6
5
6
1
e) green