S2
Solving Logarithmic Equations Using a Calculator
Solve each logarithmic equation. Round your answer to two decimal places.
1) ln x
8.1
= 0.4
2) log2 (x – 2.7) = 1.98
3) ln (x – 2) = 0.56
4) log6 3.3x = 1.1
5) log7 7.4x = 2.3
6) 5 ln (x + 8) = 3.67
7) log5 (x + 6) = 0.2
8) log3 x = 4.13
9) ln 4.9x = 0.98
0.1
10) 9 ln (x – 0.3) = 6.4
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S2
Solving Logarithmic Equations Using a Calculator
Answer Key
Solve each logarithmic equation. Round your answer to two decimal places.
1) ln x
8.1
= 0.4
x = 12.08
3) ln (x – 2) = 0.56
x = 3.75
5) log7 7.4x = 2.3
x = 11.87
7) log5 (x + 6) = 0.2
x = –4.62
9) ln 4.9x = 0.98
x = 0.54
2) log2 (x – 2.7) = 1.98
x = 6.64
4) log6 3.3x = 1.1
x = 2.17
6) 5 ln (x + 8) = 3.67
x = –5.92
8) log3 x = 4.13
0.1
x = 9.34
10) 9 ln (x – 0.3) = 6.4
x = 2.34
Teaching Resources @ www.tutoringhour.com