1.
Write 2,564,000 in scientific notation.
A.
25.64×10
5
B.
2.564×10
5
C.
2,564×10
3
D.
2.564×10
6
Hint
2.
Find 5
3
· 5
7
A.
25
-4
B.
5
4
C.
5
10
D.
25
10
Hint
3.
Rewrite 12
3
× 7
3
using a single base.
A.
19
3
B.
19
9
C.
84
9
D.
84
3
Hint
4.
Rewrite
r
a
÷
r
b
using a single base.
A.
r
b
B.
r
ab
C.
r
a
D.
r
a-b
Hint
5.
Simplify (3
5
)
8
.
A.
3
3
B.
3
13
C.
15
8
D.
3
40
Hint
6.
Which expression increases most quickly?
A.
2
x
B.
2
x
C.
x
2
D.
x
+ 2
Hint
7.
Which situation describes the expression
2?
A.
the population of a city that doubles every 10 years
B.
areas of various rugs with side length
t
for the rug at stage
t
C.
the air temperature when a cold front moves into the area and the temperature falls 2?every half hour
D.
a coin collection where 2 coins are added each month
Hint
8.
Use your calculator to evaluate the expression.
7.3 × 10
12
+ 8.1 × 10
12
A.
15.4 × 10
13
B.
1.54 × 10
13
C.
5.913 × 10
13
D.
59.13
Hint