I need some extra credit quiz done for my pre-algebra class!
lmatin
state_exam_practice_b.pdf
36
Practice Test B
1. Simplify:
25 � 120 � 3 � 2 � 2
A. �135
B. �53
C. 7
D. �57
2. Simplify:
(12 � 8)2 � 4 � 20
A. �1
B. 0
C. �24
D. �16
3. � | �5 | � | 6 | � | 3 | �
A. �2
B. 4
C. �4
D. 8
8360714_PTB_p036-047 6/23/08 9:49 AM Page 36
4. Simplify:
6[3x � 2(x � 1)]
A. 30x � 12
B. 18x
C. 90x � 72
D. 30x � 2
5. Evaluate the given expression when a � �1, b � 3, c � �2:
8ab � 2c
A. 20
B. �15
C. �28
D. �20
6. Solve for x:
2[x � 3(x � 1)] � 4x � 3
A. 0
B. �
C. No solution
D. 3 8
9 8
37
8360714_PTB_p036-047 6/23/08 9:49 AM Page 37
38
7. Solve for x:
3x � � x � 2
A. �31
B. �5
C. �
D. �
8. Solve for Y:
5X � 3Y � 7
A. Y �
B. Y � � X
C. Y �
D. Y �
9. Solve for x:
3(2x � 4) � 5x
A. x � 12
B. x � �12
C. x � �12
D. x � 12 11
7 � 5X 3
7 � 3X 5
2 3
5X � 7 3
9 16
15 16
1 3
1 2
8360714_PTB_p036-047 6/23/08 9:49 AM Page 38
10. The square of a number, decreased by two, is 6 more than the number. Choose the equation that could be used to find this number, x.
A. 2 � x2 � 6 � x
B. 2x � 2 � 6 � x
C. x2 � 2 � 6x
D. x2 � 2 � 6 � x
11. If a new CD player originally cost $250, what would be the price after a 30% discount?
A. $75.00
B. $175.00
C. $833.33
D. $150.00
12. Identify the proportion listed below that solves the problem:
You need 3 gallons of paint to cover 450 square feet of wall space. How many square feet could you cover using only two gallons of paint?
A. �
B. �
C. �
D. � 450 2
n 3
2 n
3 450
n 450
3 2
n 2
3 450
39
8360714_PTB_p036-047 6/23/08 9:49 AM Page 39
13. Simplify: (a3b4)3
A. a 6b7
B. a27b64
C. a9b12
D. a9b7
14. Simplify: (x2y�3)(xy)
A.
B.
C. x2y2
D.
15. Simplify: (a3c�2d 0)�1
A.
B.
C.
D. a3c2
a2
c3d
c2
a3d
c2
a3
x2
y3
x3
y2
x3
y3
40
8360714_PTB_p036-047 6/23/08 9:49 AM Page 40
16. Convert to scientific notation:
0.000501
A. 5.01 � 10�3
B. 5.01 � 10�4
C. 5.01 � 10�5
D. 5.01 � 104
17. Simplify:
(4x2 � 2x � 1) � (6x2 � 2x � 3)
A. 10x2 � 4x � 2
B. 24x2 � 4x � 3
C. 10x2 � 4x � 2
D. 10x2 � 2
18. Simplify:
�2x2(3x � 2)
A. �6x3 � 4x2
B. �10x5
C. �6x3 � 4x2
D. �6x3 � 4
41
8360714_PTB_p036-047 6/23/08 9:49 AM Page 41
19. Simplify:
(8a � b)(2a � b)
A. 16a2 � 6ab � b2
B. 16a2 � b2
C. 16a2 � 10ab � b2
D. 10a2 � 8ab � b2
20. Factor completely:
3x3 � 24x2�18x � 9
A. (3x � 8)(2x � 3)
B. 3(x3 � 8x2 � 6x � 3)
C. 3x(x2 � 8x � 6)
D. 2(3x3 � 12x2 � 9x � 9)
21. Factor completely:
49A2 � 16B2
A. (7A � 8B)(7A � 2B)
B. (7A � 4B)2
C. B(7A � 4)(7A � 4)
D. (7A � 4B)(7A � 4B)
42
8360714_PTB_p036-047 6/23/08 9:49 AM Page 42
22. Factor completely:
x2 � ax � 2x � 2a
A. (x � a)(x � a)(x � 2)
B. x(a � 2)2
C. (x � a)(x � 2)
D. (x � 2a)(x � 1)
23. Identify a factor of the trinomial below:
8x2 � 14x�15
A. 4x � 3
B. 2x � 3
C. 4x � 5
D. x � 5
24. Simplify:
A.
B.
C.
D. x � 1 x � 3
x � 3 x � 9
x � 1 x � 3
x � 1 2x � 3
x2 � 2x � 3 x2 � 6x � 9
43
8360714_PTB_p036-047 6/23/08 9:49 AM Page 43
25. Solve:
2x2 � 7x � 4 � 0
A. x � �2, x � 2
B. x � �4, x �
C. x � 2, x �
D. x � 4, x � �
26. Solve: 2x2 � 23x � 30 � 0
A. x � 10, x �
B. x � , x � �30
C. x � 6, x � �5
D. x � �10, x � �
27. Assuming x represents a non-negative number, simplify completely:
A. 4x2
B. 2x2
C. 2x
D. 8x3 �2x2
�x
�x
�x
�16x5
3 2
1 2
3 2
1 2
7 2
1 2
44
8360714_PTB_p036-047 6/23/08 9:49 AM Page 44
28. Simplify completely:
�
A.
B. �
C. �7
D. 6 � 16
29. Find the x � intercept for
y � 3x � 1
A. (1, 0)
B. (�1, 0)
C. (3, 0)
D. �� , 0�13
�2�3
�2
�2
��14
�32�18
45
8360714_PTB_p036-047 6/23/08 9:49 AM Page 45
30. Find the graph that best matches the given linear equation:
2x � y � 4
A. C.
B. D.
y
x
y
x
y
x
y
x
46
8360714_PTB_p036-047 6/23/08 9:49 AM Page 46
Practice Test B Answers:
1. B 2. D 3. A 4. A 5. C 6. D 7. C 8. A
9. B 10. D 11. B 12. C 13. C 14. B 15. A 16. B
17. D 18. C 19. A 20. B 21. D 22. C 23. A 24. D
25. B 26. D 27. A 28. B 29. D 30. C
47
8360714_PTB_p036-047 6/23/08 9:49 AM Page 47
- copyright:
