College Algebra Homework

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MathQuizFall2020.docx

Math 107: Quiz #5: Name: ______________________________________

Due: 11/07/20

Please show all work. Each problem is worth 10 points.

1. Sketch the graph of the given function, showing all necessary characteristics. This does not mean graph it from your calculators.

2. Find each of the following..

a. b.

3a. Convert to an exponential equation.. 3b. Convert to a logarithmic equation..

a. ln 0.38 = -0.9676

c. Given that ,

Find

4. Express in terms of sums and differences of logarithms. This means, expand.

5. Express as a single logarithm. This means, condense

6. Solve the given equation.

7. Solve

8. The population of Panama was 3.039 million in 2005, and the exponential growth rate was 1.3% per year.

a. In what year will the population be 12 million?

b. What is the doubling time?

9. Suppose $3000 is invested at a rate k, compounded continuously, and grows to $3700.45 in 3 years, find the balance after 8 years.

10. Find the inverse of the given function.

11. The formula, occurs in theory of

electricity. Solve for t.

12. ,

a. . (the little circle means, composition of functions. It does not mean multiply.)

Do not forget that x must be in the domain of g and g(x) must be in the domain of f.

b. .

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2

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3

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609

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0

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693

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64