1.
Find ln 6.21 to four decimal places.
A.
497.7013
B.
1.8262
C.
2.7183
D.
0.7931
Hint
2.
Evaluate ln
e
3 -4
x
.
A.
e
3
–
e
4
x
B.
3 – 4
x
C.
(3 – 4
x
)log
10
e
D.
4
x
– 3
Hint
3.
Solve 3
e
-2
x
= 5.
A.
0.51
B.
–0.26
C.
–0.51
D.
0.26
Hint
4.
Shrinivas deposited $1300 in an account which pays 8% annual interest, compounded continuously. How long will it take to reach $3500?
A.
1.2 years
B.
9.2 years
C.
12.4 years
D.
176 years
Hint
5.
Solve ln (2
x
+ 3) > 4.
A.
x
< 20.2
B.
x
> 25.8
C.
x
> 20.2
D.
x
< 25.8
Hint