1.
Two solid rocket boosters provide the main thrust to lift the space shuttle off the launching pad. Each booster weighs approximately 1.92 × 10
5
pounds. Express this weight in standard form.
A.
192,000 pounds
B.
19,200 pounds
C.
0.0000192 pounds
D.
19,200,000 pounds
Hint
2.
Which equation represents exponential decay?
A.
y
= 1.7(1.06)
x
B.
y
= 0.86(1.46)
x
C.
y
= 2.62(1.22)
x
D.
y
= 1.05(0.95)
x
Hint
3.
Find 5
y
7
× 8
y
2
.
A.
13
y
9
B.
13
y
14
C.
40
y
14
D.
40
y
9
Hint
4.
Simplify 11
z
2
× 9
z
3
.
A.
99
z
5
B.
20
z
6
C.
20
z
5
D.
99
z
6
Hint
5.
Rewrite 9
4
÷ 3
4
using a single base.
A.
3
8
B.
3
16
C.
3
1
D.
3
4
Hint
6.
Simplify (3
5
)
8
.
A.
3
3
B.
15
8
C.
3
13
D.
3
40
Hint
7.
Which table describes exponential decay?
A.
B.
C.
D.
Hint
8.
Use your calculator to evaluate the expression.
7.3 × 10
12
+ 8.1 × 10
12
A.
1.54 × 10
13
B.
59.13
C.
5.913 × 10
13
D.
15.4 × 10
13
Hint