1.
Find ln 6.21 to four decimal places.
A.
1.8262
B.
0.7931
C.
497.7013
D.
2.7183
Hint
2.
What is an equivalent logarithmic equation to
e
x
= 7?
A.
e
x
= ln 7
B.
x
= ln 7
C.
7 = ln
e
D.
ln
x
= 7
Hint
3.
Evaluate 4 +
e
ln9
.
A.
4 +
e
3
B.
9 + ln 4
C.
9 +
e
4
D.
13
Hint
4.
Solve 4 – 2
e
4
x
= 1.
A.
0.10
B.
–0.10
C.
0.41
D.
–0.41
Hint
5.
Shrinivas deposited $1300 in an account which pays 8% annual interest, compounded continuously. How long will it take to reach $3500?
A.
12.4 years
B.
176 years
C.
1.2 years
D.
9.2 years
Hint