trash-ket ball chapter 7 exponents and logarithms
TRANSCRIPT
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Trash-ket Ball
Chapter 7
Exponents and Logarithms
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Trash-ket ball
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3478
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1211
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1615
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2019
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2427
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1Solve.
52x = 59x + 7
x = -1
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2Solve.
x = -2, 5
4 42 6 3 4x x
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3Solve.
x = 1 6
161
643 2x
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4Solve.
27x = 800
2log 800
7x
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5Solve.
logx 512 = 3
x = 8
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6Solve.
log8 (3x - 6) = log8 (9x + 23)
x 296
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7Solve.
log7 (x2 - 5) = log7 (59)
x 8
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8Solve.
log9(x + 3) = log92x
x = 3
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9 Solve.
3x = 72
3log 72x
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9 Use your calculator to find decimal for last answer.
3log 72x
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10Solve.
72x +2= 21
7log 19
2x
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11Solve.
3(53x )= 36
5log 12
3x
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12Write in logarithmic form.
82 = 64
log8 64 = 2
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13Simplify the following
144 x
x
e
e
3
1xe
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14Solve.
50
4 log 2 6x
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15Solve.
10, -10
22log 4x
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16Write in exponential form.
131
21973
log131
21973
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17Write in exponential form.
log11 1331 = 3
113 = 1331
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18Write in exponential form.
log5 625 = 4
54 = 625
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19Write in exponential form.
81
642
log81
642
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20Evaluate
log71
2401
-4
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21Evaluate
log15 225
2
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22Evaluate
log6 1296
4
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23Expand
2(log3 27 + log3 x)
= 2log327 + 2log3x
log3 (27x)2
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24Expand
logx
9log x – log 9
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25Condense
logxy
z
3
3
log log logx y z 31
3
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26Condense
log5 5a
1
225 5log log a
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27Evaluate. Round to 4 decimal places.
log11 52
1.6478
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28
log5 8.7
1.3441
Evaluate. Round to 4 decimal places.
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29
log6 21.7
1.7175
Evaluate. Round to 4 decimal places.
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30
log13 28.3
1.3033
Evaluate. Round to 4 decimal places.
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31
Log(3x+1)=2
33
Solve.
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32
log13 (x-1)=1
14
solve.
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33
ln (2x+3)=81488.97
Solve.
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34
log4 x+ log4 x+6=2
Evaluate. Round to 4 decimal places.
2
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35Evaluate. Round to 4 decimal places.
1/2
3 3log 4 log ( 4) 2x x