Intermediate Algebra Unit 9: Logarithms Worksheet - Tangient Llc Page 19
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25Intermediate Algebra
Unit 9: Logarithms
Review Questions:
*Study your orange textbook exercises and be sure you can answer these questions:
♦ A logarithm is an _______________________.
♦ Logarithms are used to solve for a variable in the __________________________.
♦ Common (decimal) logs are____________________________________________.
♦ Write the procedure for solving log equations here:
Write each equation in exponential form:
=
−
=
(1)
3
log
8
(2)
1
log
0
2 .
2
5
Write each equation in log form:
49 =
125 =
2
3
(3)
(4)
7
5
Solve each equation for x and round your answer to four decimal places:
=
=
x
x
(5)
5
3
6 .
(6)
2
1
5 .
=
+
=
x
x
2
(7)
4
21
(8)
7
560
18
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