1.
Express 0.091 in scientific notation.
A.
9.1 × 10
2
B.
9.1 × 10
1
C.
9.1 × 10
-2
D.
9.1 × 10
-1
Hint
2.
Simplify (18
q
3
r
)(2
q
r
4
).
A.
36
q
4
r
5
B.
36
q
3
r
4
C.
36
q
r
D.
36
q
3
r
5
Hint
3.
Simplify
A.
5
t
3
u
3
v
4
B.
C.
D.
Hint
4.
Express the result in scientific notation. (3 × 10
-3
)(2 × 10
9
)
A.
3 × 10
6
B.
6 × 10
6
C.
6 × 10
12
D.
3 × 10
12
Hint
5.
Express the result in scientific notation.
A.
1.25 × 10
4
B.
1.25 × 10
-4
C.
1.25 × 10
10
D.
1.25 × 10
-10
Hint