1.
Find log 136.8 to four decimal places.
A.
2.1106
B.
2.1418
C.
2.0502
D.
2.1361
Hint
2.
Find
to three decimal places.
A.
1.3617
B.
2.3225
C.
3.1355
D.
1.6113
Hint
3.
Solve 6
2x
> 5
x
+ 2
.
A.
x
> 1.63
B.
x
> 1.82
C.
x
> 0.85
D.
x
> 0.82
Hint
4.
Express log
6
15 in terms of common logarithms.
A.
B.
C.
D.
Hint
5.
Suppose black coffee has a pH of 5 and milk of magnesia has a pH of 10. How many times more hydrogen ions are in black coffee than in milk of magnesia? (pH = –log[H+], where
H
+ is the substance's hydrogen ion concentration in moles per liter)
A.
5 times
B.
2 times
C.
100 times
D.
100,000 times
Hint