1.
Multiply 0.25 × 10
3
.
A.
0.00025
B.
25,000
C.
25
D.
250
Hint
2.
Write 3,465 in scientific notation.
A.
0.3465×10
4
B.
34.65×10
2
C.
346.5×10
D.
3.465×10
3
Hint
3.
Which symbol makes the following statement true?
7,500 ______ 7.5 × 10
3
A.
B.
<
C.
>
D.
=
Hint
4.
Express 7
-3
using positive exponents.
A.
B.
C.
D.
(-7)
3
Hint
5.
Evaluate the expression 5
n
4
m
-2
if
m
= 6 and
n
= 3.
A.
-5
B.
-20
C.
D.
Hint
6.
Write 0.478 in scientific notation.
A.
4.78 × 10
2
B.
4.78 × 10
-1
C.
478 × 10
1
D.
4.78 × 10
-2
Hint
7.
The diameter of a volcanic particle averaged 0.000022 meter. What is this measure written in scientific notation?
A.
0.22 × 10
-4
B.
2.2 × 10
C.
2.2 × 10
-5
D.
2.2 × 10
5
Hint
8.
Simplify (3
x
3
)
4
.
A.
3
x
7
B.
27
x
7
C.
12
x
12
D.
81
x
12
Hint
9.
Find the value of
N
in the equation.
N
× 10
4
= 8,653,300
A.
N
= 86,533,000,000
B.
N
= 8.6533
C.
N
= 86,533
D.
N
= 865.33
Hint
10.
Use your calculator to evaluate the expression.6.23
19
A.
1.245 × 10
15
B.
1.245 × 10
19
C.
12.45 × 10
19
D.
12.45 × 10
15
Hint