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