Math 112 Final Exam Study Aid Worksheet With Answer Key Page 36
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39Math 112
Final Exam Study Aid
36 of 39
124. Determine the domain of the logarithmic function f (x) = log
(x
4).
7
(A) (
, 4)
(B) (
, 4]
(C) (
, 1)
(D) [4,
)
(E) (4,
)
2x
2x 1
125. Solve for x :
3
= 27
The answer is a number:
(A) between 0.5 and 1
(B) between 0 and 0.5 (C) between
0.5 and 0
(D) between 1 and 2
(E) None of these
x
x 1
126. Solve for x :
3
= 5
The solution is a number:
(A) between 2 and 4
(B) between
5 and
3 (C) between
1 and 0
(D) between
3 and
1 (E) None of these
127. Solve for x :
ln(2x
1) = 2
2
2
4
e
e
+ 1
1
e
2
(A) x =
(B) x =
(C) x = e
+
(D) x =
2
2
2
2
(E) None of these
128. Solve for x:
log
( 4
x) + log
(3
x) = 3
2
2
The solution is a number:
(A) between
9 and
6
(B) between
6 and
4
(C) between
4 and
1
(D) between
1 and 2
(E) between 2 and 5
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