1.
Express 0.091 in scientific notation.
A.
9.1 × 10
-1
B.
9.1 × 10
1
C.
9.1 × 10
2
D.
9.1 × 10
-2
Hint
2.
What is the degree of 42
x
5
y
2
z
?
A.
8
B.
2
C.
7
D.
5
Hint
3.
Simplify (18
q
3
r
)(2
q
r
4
).
A.
36
q
r
B.
36
q
3
r
5
C.
36
q
3
r
4
D.
36
q
4
r
5
Hint
4.
Simplify
A.
k
17
B.
k
-3
C.
k
3
D.
Hint
5.
Express the result in scientific notation. (3 × 10
-3
)(2 × 10
9
)
A.
3 × 10
6
B.
6 × 10
6
C.
3 × 10
12
D.
6 × 10
12
Hint