# Unit 3 Practice Test #1 by CarlosLemus

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```									Name: ________________________ Class: ___________________ Date: __________                                ID: A

Unit 3 Practice Test #1

1   Simplify 9 + 3 • 2 2 − (9 − 2) 2                      10   Which expression below has the same value
as x 2 ⋅ y 2 ?
2   Simplify (7 − 6) 2 + 6 ÷ 3 • 4                             F    Ê xy ˆ 4
Á ˜
Ë ¯
G    xxyy
3   Evaluate −5r 2 − 2s 2 for r = 5 and s = –1                 H    4xy
I    Ê xy ˆ 4
Á ˜
4   Evaluate the expression for the given value(s).                 Ë ¯
(3h − j) 2                                            11   What expression is equivalent to 5 5 × 5 −5 ?
for h = –2 and j = 4
h                                                     A    50
B    5 10
5   What does x 3 equal when x = –3?                           C    5 −25
D    5 −10
6   Simplify. Write using exponential notation.
33 • 27 • 43                                          12   (ab) −2 (ab) −3 =
3 11 • 2 3 • 4 7                                           F (2ab) −5
G (2ab) 1
7   Write as a power 6 4 × 6 6 .                               H (ab) −5
I    (ab) 1
8   Which expression below has the same value
10 6                                                                                95
as        ?                                           13   What value is equivalent to       ?
10 2                                                                                9−5
F     108                                                  A    9 10
G     1012                                                 B    9 −10
H     10,000                                               C    9 −25
I     1,000                                                D    90
−6x 5                                                       6x −4
9   What value is equivalent to              ?            14   Which expression is equivalent to          ?
42x 8                                                       36x 12
A     7x 3                                                 F    6x 16
1                                                         6
B                                                          G
7x 3                                                      x 16
C     7x −3                                                H    6x 8
1
D     − 3                                                  I
1
7x                                                       6x 16

1
Name: ________________________                                                                             ID: A

15   Which expression below has the same value             23   Natalee cut this sandwich in half. If the diagonal
−2                                                  of the sandwich is 13 inches and the height is 5
x
as          ?                                              inches, how wide is the sandwich?
x −10
A      x −12
1
B
x −8
C      x −8
1
D
x −12

16        25 =

17   What is the square root of 121?                       24   From his house, George rides his bike 12 miles
south and then an unknown distance east. If he is
13 miles away from home, how many miles east
18   If x = 121, what is the value of 2       x ?
did George ride his bike?

19   The value of          183 is between which two
integers?

20   What is the value of –6         81 ?

21   What is the length of the missing side of this
right triangle?

25   In the figure below, D is the midpoint of AC , and
BD is perpendicular to AC .

22   In right        XYZ, what is the length of YZ ?

What is the length of BD?

2
ID: A

Unit 3 Practice Test #1

1    –28
2    9
3    –127
4    −50
5    −27
24
6
38 • 44
7    6 10
8    H
9    D
10   G
11   A
12   H
13   A
14   I
15   B
16   5
17   11
18   22
19   13 and 14
20   –54
21   15
22   8
23   12 inches
24   5 miles
25   8

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