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chapter
N~::._._k
8
~---+-!I---
1
Simplify
the expression.
(-8.6) o
A
-1
B
O
C
-8.6
a5
2
Simplify
the expression.
1
-(6r
A
B
C
6
_[6
l
Ô
3
Simplify
the expression.
J
(4r
l
A
-16
B
16
r-~'~"î
+'./-"",
\...~
D
4
Simplify
-8
the expression.
7a-5b3
A
7ab-15
I
B
ej
3
70.5
(i3l/
D
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Page 1 of 16
-,
chapter 8
5
Simplify
12
the expression.
c-ild"
A
12
cd-6
B
96c
-
C
12
c8d'
d"
GJD
6
Simplify
the expression.
@OJ?)'_;¡'
A
25
B
-500
D
-200
-020
;Z5
..-
L(
_...-
"Y
~
7
Simplify
S-l. i
the expression.
. .-'
-S
5
'1_ O
P-
'í
_L
5-'3
~
8
B
-15
C
O
D
125
Simplify
the expression.
7.'{-<l·6x)
B
B
C
D
Copyright
42x5
42xll
13x-5
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Page2of16
chapter 8
9
Evaluate
9 xy2
the expression
for x= -3 and y::: 2.
-3
A
~
C
Q{-3)2_(;;_y\
324
V-CL(
Fd
ç
9( _6)0
l
D
10
Evaluate
1'1
144
for
x ::: 2 and v= -4.
I
-pyi=
2-2X-3 5
y
A
)"3
'_
fI-~-
+;-'1-4
(
--:,...
.-
."'--,
,
3~
"2.-
16
B~
~
D
11
-16
What is the expression
as a decimal?
4· lO-l
A
0.4
C
-120
D
4,000
cr
12
D, i>6tr
O~
Chase scored
14 points on Monday,
and he doubled
his score each day thereafter.
How
many points did he score on Thursday?
~-
P
~~
Copyright
C
56 points
D
42 points
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00
'í/-.
6'"(."
l t '"l..--
Page 3 of 16
chapter 8
13
Simplify the expression,
1T) . 121& . 12"
A
367
B
17287
C
1
~
14
Simpljfy
the expression.
(7.46)~- (7.46)
b
A
1
B
C
-7.4611
11
~
15
Simplify
the expression,
2.e·3k)
"r
A
11
B
•
14
.JI(
5k
-
!""--m~
~
D
16
24
6k
Sl.mplify the expression,
6
. la
a b. ~,.9
jo
cL~
Copyright
B
10a6h9
C
18abl5
D
18a45b9
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Page 4 of 16
_-,c_ .................
",-----
~-~~-"""""""'~~~-"""'~-C,-~",_,
chapter 8
17
Simplify
-4x)
the expression
') -1 c
. ¿y '~y
5"'x.." '
.
-- t.¡ù 3
3
- x
A
--------~
~
401
401
-- 5
8
)G5
x
18
2x5
C
-
D
--
Simplify
5y3
5/
2x
the expression.
/'-'/
ö
¡
Ab
8
c
D
¡
(;O
b
t¡ cl (.,
e.A~·'
-¡¡:t
æ
19
f 2") - 3
Simplify.
A
C¿
8
~S
~D
¡
,
~~
20
n
Simplify.
A
~
,
-(\
.I
L6
_J
h
(.
~-:2
(- 2- )
_&2-)
__
02)
L
~,
1
C _L.(
D ...L,
't
Cop
'h
--~
~
yrlg t © Pearson Education . I nc. or 'Its affiliates,
,,
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Page50f16
\
\
chapter 8
I --3
(j
21
-'"
?
('I...~ " C. I:)
~)~
Simplify,
/'
t<l
-21' a-1 b 'l. C "
~tl '§ 0-
c.. ,.
A \jO- k)"il b(l
fe..
8 _d1-{1.
~ .
D
22
r.i
-3c,_b
Complete
C-
i__
<
C -;}.1-a..
,
h -' Cj e
ff'
_
L
the equation
by choosing
the missing exponent.
3 '? _, 3-~
(~= J ~
A
-8
8
-3
D
4
~
23
Complete
the equation
by choosing
?
(Î/l
A
4
8
-3
C
-8
<I'
the missing exponent.
';J_
:3
ir
.:
(\
"
(',/J
z:
ry]
~
tI
e_3
24
Last year, a large trucking
5
8.0:< 10
value is $30,000
&;J
-...-
the following
total amount of goods:
-----D DU I OD¿>
C '6t ¿) yo",
D ~
/
per ton, what was the total value of the goods delivered?
(i 00/ crzrz» / erz»:o
-_)
B tf;l i¡'
Copyright
delivered
tons
If the average
A
company
o.u<Y¡
~O~
/,'
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'g' öooo-ö
/
3..9 cJD o
oc:n::~_)
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Inc. or its affiliates.
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)
~oo
All Rights Reserved.
;2.1..(
'/
o»
o
J
V
l)
1>/" t> -o
Page 6 of 16
chapter 8
25
Simplify the expression.
22
.
28
A
410
C
4
D
216
~
26
16
Simplify the expression.
i
.76
A
4930
B
730
C
4911
~
27
aM
_.;,....-
0..:(\
-=-M .t- if\.
~
28
Mn
C
¿J_
D
a.'~
Q.._(V1<
O
Lc~eV\.
( ()_.$5 0/1;\£
""
CL\I
•
(/.j
,a_fé{~e
Yll.Jm&¿¡--)
1'\1\;: O
B M> I
A
CCrvl~D
D
ty\
s:
t
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Page 7 of 16
---
------------
chapter 8
29
Simplify the expression.
2
(k /
A
kó
B
2k8
C
k
l6
~
30
Simplify the expression.
Ct -2) 6
A
JU
B
12
D
t64
~
31
x
1
Simplify the expression.
(x9)o
(X1)2
A
XiS
B
1
D
xl26
~
32
Simplify the expression.
(_h4)5
A
_h9
B
hl
C
h
20
~
Copyright © Pearson Education, Inc. or its affiliates. All Rights Reserved.
Page 8 of 16
chapter 8
33
Simplify the expression.
(Sk2)3
(£122)
34
B
12Sk5
C
Skli
D
Ske
Simplify the expression.
(3);),3) 2 (10') Ii
~
35
B
3XByl:l
C
2X
D
e
9x /
Cf }(". (j
Ci
~
X
<g'
~
~
J
t
¡l-
I )( ~
32
/
Simplify the expression.
(-Sg) hó)"(l h")4
~
36
.,?
c? 5{' J"
¡) €f
g h"
B
~
C
_2Sg"ôh20
D
25g15h
IL-~
(Co
~
11
~ h :>-0
2.1,
14
F~fic;.9. .{1_,;_ V~(
¡J
e:
(.t:>~.ç y: ;-.Ç- X,- I
+ X.-2... ~O
C-I) -( +
_L
.J-
-(
-I
~
..(-
c:
'!
(
_.-
c-0
L
}::- D
~_/
D
Copyright
¡;¿
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Reserved.
Page 9 of 16
\
chapter 8
37
Determine whether the expression is always, sometimes, or never true.
(nar=n/l'
A
.Π:
C
38
always
sometim~
never
Simplify the expression.
r
95
(
A
910
B
18:1.5
~
39
Simplify the expression.
~(4r2
~
40
B
16
C
16
D
-8
Simplify the expression.
(-7.3) o
A
-1
e
O
D
-7.3
CB:S)
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Page 10 of 16
chapter 8
41
Simplify,
A
B
-(
.
~,.~
~.
(
lo
,=L{
D. D 12\
D t D O \ 2--\
CCOJ,~CJOLLj)
D
42
Simplify
O
Jr
()OD
O
i 2. \.
the expression.
7
3
35
A
335
B
312
®
43
Simplify
the expression.
14
X
Xl
6
1
C
D
44
Simplify
Xl
21
X
the expression.
X5
X9
A
1
~
B
x4
C
X
14
4
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Page 11 of 16
\\
\
chapter 8
45
Simplify the expression.
"
97
99
~
~
B
C
D
46
16
9
1
16
9
81
Simplify the expression.
m-6 n-3
m
\
(~
-=ï3=ï
,1\1\
n
'"
____-:::;-3
~
.:
vvv
n'""
A
m-H
B
m3n12
\'Î
,-
~
fV1
n
9-
'"2..--
~
~_2_/
D
47
m7n2
Simplify the expression.
(32
X
r
----~,
)< c.r
/~
~
Copyright
12x4
c
-8
D
-
81x4
2
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Page 12 of 16
chapter 8
48
Simplify the expression.
[:0
r
~
2l
B
30
lOO
c
7
lODO
D
49
343
r
Simplify the expression.
[m~'_:'
-('5"'
::2
-~
¡IV\
VV\
---{
Ç
~
(VI
/I13/1/
~._L
}1/4
((3
3m+
A
-~
m
@
e
mIS
D
50
-m :;16
Simplify the expression.
C-l)S]"
[ (-·2r
3
~
l
A
64
C
2
D
r30
30
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Page130f16
__
----
chapter 8
ø"
6
51
Radio signals travel at a rate of 3 x 108 meters per second. How many seconds will it take
for a radio signal to travel from a satellite to the surface of the Earth if the satellite is
7
orbiting at a height of 3.6 x 10 meters?
A
8.3 seconds
1.2
52
~
seconds
X lO-I
16
1.08 x 10
D
75 ) {-
(.? y: /0
"9
seconds
15
10.8 x 10 seconds
/
';',10
~
{o
{
3
. O
t ~
>cf
9- \
)
IO/~k!D
f..O'l;)< to
__
I~
tc
Simplify the expression.
14414
1442
A
14416
CS=!~
C
14428
14
D
53
2
144
Simplify the expression.
xl3
x2
13
~
Copyright
2
A
X
B
X
D
);26
l5
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Page 14 of 16
\
/
chapter 8
54
Simplify the expression,
21
23
A
23
B
221
D
ZiO
~
55
Simplify the expression,
3
-(4r
A
43
B
1
43
c
\
,-
Y
3
1
4
'1
-.J
~~
~
56
Find the common ratio of the sequence.
2,-10,50,-250, ...
~
57
B
-12
C
-5
D
12
1
Find the common ratio of the sequence.
-164, -82, -41, -20.5, .. ,
A
-82
B
2
D
82
~~
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Page 15 of 16
--
chapter 8
58
Find the next three terms of the sequence.
3,9,27,81,
A
cf
59
-243
-729
- 2187
21'â:::>
~3, ~29,
C
81,243,729
D
87, 249, 87
Determine whether the sequence is arithmetic or geometric.
-2,10,-50,250,
...
A
Cs
60
..
arithmetic
geome9
Find the first, fourth, and eighth terms of the sequence.
Aen)
=
-2 . 2,-1
A
S
1; -64; -16,384
-4;-32;-512
~==3<-]6;
-2~b
D -8; -64; -1,024
61
You drop a ball from a height of 0.5 meter. Each curved path has 52% of the height of the
previous path.
a. Choose the correct rule for the sequence, using centimeters. The initial
height is given by the term n = 1.
b. What height will the ball be at the top of the third path?
A
A(n)
= 50(52)"-1;
A(n)
=
C
A(n)
= 50(0.52)"-1;
D
A(n) = 0.52(0.5)"-1;
~
Copyright
© Pearson Education,
135,200 cm
~5(0.52)"-1;
Inc. or its affiliates.
0.1~
13.52 cm
0.13 cm
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Page 16 of 16
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