1.
Express 7
-3
using positive exponents.
A.
B.
C.
D.
(-7)
3
Hint
2.
Write 0.478 in scientific notation.
A.
478 × 10
1
B.
4.78 × 10
-2
C.
4.78 × 10
-1
D.
4.78 × 10
2
Hint
3.
The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation?
A.
2.2 × 10
5
B.
2.2 × 10
C.
2.2 × 10
-5
D.
0.22 × 10
-4
Hint
4.
Simplify (3
x
3
)
4
.
A.
12
x
12
B.
81
x
12
C.
27
x
7
D.
3
x
7
Hint
5.
Simplify the expression.–4
x
× 4
x
8
A.
–8
x
9
B.
–16
x
9
C.
–16
x
8
D.
–8
x
8
Hint