1.
Express 0.091 in scientific notation.
A.
9.1 × 10
2
B.
9.1 × 10
1
C.
9.1 × 10
-1
D.
9.1 × 10
-2
Hint
2.
What is the degree of 42
x
5
y
2
z
?
A.
8
B.
7
C.
5
D.
2
Hint
3.
Simplify (-3
a
5
b
3
)
4
.
A.
81
a
20
b
12
B.
-81
a
9
b
12
C.
-12
a
9
b
7
D.
-12
a
20
b
12
Hint
4.
Simplify
A.
B.
27
x
3
n
y
6
C.
D.
Hint
5.
Express the result in scientific notation. (3 × 10
-3
)(2 × 10
9
)
A.
3 × 10
12
B.
3 × 10
6
C.
6 × 10
6
D.
6 × 10
12
Hint