AnswersFL-1200330-Algebra 2 CRSolving Exponential and Logarithmic Equations

Solving Exponential and Logarithmic Equations Answers

18 verified answers1 views
1
Free Preview

What equation is equivalent to 9x - 3 = 729?

A
9x - 3 = 981
B
9x - 3 = 93
C
3x - 3 = 36
D
32x - 3 = 36
5

Which of the following is the solution of 5e2x - 4 = 11?

A
x = ln 3
B
x = ln 27
C
mc001-1.jpg
Option C
D
mc001-2.jpg
Option D
10

What is the solution to ln (x2 - 16) = 0?

A
mc001-1.jpg
Option A
B
mc001-2.jpg
Option B
C
mc001-3.jpg
Option C
11

Solve: e2x + 5 = 4

A
Option
Option A
B
Option
Option B
C
Option
Option C
13

Consider the equation log(3x - 1) = log28. Explain why 3x - 1 is not equal to 8. Describe the steps you would take to solve the equation, and state what 3x - 1 is equal to.

Answer:

The bases are not the same, so you cannot set 3x - 1 equal to 8. Evaluate the logarithm on the right: log₂8 = 3. Then use the definition of a logarithm: log(3x - 1) = 3 means 3x - 1 = 10³ = 1000.

14

Which did you include in your answer?

A
The bases are not the same, so you cannot set 3x - 1 equal to 8.
B
You can evaluate the logarithm on the right side of the equation to get 3.
C
You can use the definition of a logarithm to write 3x - 1 = 1000.

Did you find these answers helpful?