QA - Logarithms - Test

If log 2 = .301, find the number of digits in \((125)^{25}\)

1 Mark(s)

53
50
25
63

\(2log{4\over{3}}-log{x\over{10}}+log{63\over{160}}=0\)

1 Mark(s)

7
14
9
3

Find x if log x = 2 log 5 + 3 log 2

1 Mark(s)

50
100
150
200

Find x, if 0.0lx = 2

1 Mark(s)

log 2/2
2/log 2
-2/log 2
-log 2/2

log (x - 13) + 3 log 2 = log (3x + 1)

1 Mark(s)

20
21
22
24

If log 2 = .301, log 3 = .477, find the number of digits in \((108)^{10}\) .

1 Mark(s)

21
27
20
18

\(log {75\over{35}}+2log{7\over{5}}-log{105\over{x}}-log{13\over{25}}=0\)

1 Mark(s)

90
65
13
45

If log 2 = .301, log 3 = .477, find the number of digits in (108)10.

1 Mark(s)

21
27
20
18

If log 2 = .301, find the number of digits in \((125)^{25}\)

1 Mark(s)

53
50
25
63

log (2x - 2) - log (11.66 - x) = 1 + log 3

1 Mark(s)

452/32
350/32
11
11.33

If log 3 = .4771, find \(log(.81)\times log({27\over{10}})^{2\over{3}}\) TI log 9

1 Mark(s)

2.689
- 0.0552
2.2402
2.702

Find x if log x = log 1.5 + log 12

1 Mark(s)

12
8
18
15

Express log \(^3\sqrt{a^2}\;or\;{a^{2/3}\over{b^5\sqrt{c}}}\) in terms of log a, log band log c.

1 Mark(s)

3/2 log a + 5 log b - 2 log c
2/3 log a - 5 log b - 1/2 log c
2/3 log a - 5 log b + 1/2 log c
3/2 log a + 5 log b - 1/2 log c

If log 3 = .4771, find log \((.81)^2\) x log \({27\over{10}}^{2\over{3}}\) TI log 9

1 Mark(s)

2.689
- 0.0552
2.2402
2.702

\(log{16\over{15}}+5log{25\over{24}}+3log{81\over{80}}\)= log x, x=?

1 Mark(s)

2
3
0
None of these

\(log{75\over{35}}+2log{7\over{5}}-log{105\over{x}}-log{13\over{25}}=0\)

1 Mark(s)

90
65
13
45

Find x if log x = log 7.2 - log 2.4

1 Mark(s)

1
2
3
4

logan;bn + logbn;cn + logcn1an

1 Mark(s)

1
n
0
2

log 2x = 3

1 Mark(s)

9.87
3 log 2
3/log 2
9.31

5x = 10

1 Mark(s)

log 5
log 10/log 2
log2
1/log 5

QA - Logarithms - Test - 3 : Question 1 of 20