1.
In the expression (-4)
2
, -4 is called the ______.
A.
exponent
B.
product
C.
base
D.
power
Hint
2.
Express 130,254 in expanded form.
A.
(1 × 10
6
) + (3 × 10
5
) + (2 × 10
3
) + (5 × 10
2
) + (4 × 10
1
)
B.
(1 × 10
5
) + (3 × 10
4
) + (2 × 10
2
) + (5 × 10
1
) + (4 × 10
0
)
C.
(1 × 10
5
) + (3 × 10
4
) + (2 × 10
3
) + (5 × 10
2
) + (4 × 10
1
)
D.
(1 × 10
5
) + (30 × 10
4
) + (2 × 10
2
) + (5 × 10
1
) + (4 × 10
0
)
Hint
3.
Find
y
for
y
=
x
2
- 15 if
x
= 6.
A.
51
B.
21
C.
-3
D.
49
Hint
4.
Write 3 ·
x
·
x
·
x
·
x
·
y
·
y
·
y
·
y
using exponents.
A.
3>
x
4
y
3
B.
3
x
4
y
4
C.
3
4
x
4
y
4
D.
3
xy
8
Hint
5.
Evaluate 7(
a
–
b
)
3
if
a
= 3 and
b
= 1.
A.
56
B.
8
C.
42
D.
28
Hint