1.
Solve log
3
(
x
+ 4) - log
3
(
x
- 2) = 2 log
3
2.
A.
6
B.
9
C.
8
D.
4
Hint
2.
Solve log
5
(
x
+ 2) + log
5
( 2
x
- 1) = 2.
A.
3
B.
C.
no solution
D.
, 3
Hint
3.
Chemistry
The pH of a solution and the concentration [H
+
] of hydrogen ions in the solution are related by the formula
. Find the concentration of hydrogen ions in a solution with a pH of 2.9.
A.
794.33
B.
0.00032
C.
0.0013
D.
0.00068
Hint
4.
Given that log
7
10
1.18, find log
7
1000.
A.
3.85
B.
1.64
C.
2.54
D.
3.54
Hint
5.
Given that log
8
10
1.11 and log
8
60
1.97, find log
8
6.
A.
1.77
B.
0.86
C.
1.16
D.
3.08
Hint