## Math For Social Sciences. Practice Exam

1. Write each exponential statement in its equivalent logarithmic form:
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2. Write each logarithmic statement in its equivalent exponential form:
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3. Sketch each of the following graphs. Identify any intercepts and asymptotes in your sketch:
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4. Solve each of the following equations for x. Give exact answers (i.e. no decimals).
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5. Solve each of the following equations for x. Round your answers to one decimal place.

6. If , , and ,
find .

7. True or False:
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8. Ashley borrows \$1,350 at simple interest to pay taxes. The loan is for 8 months and costs \$96.30 in interest. Find the annual interest rate.

Answer: The annual interest rate is 10.73%.

9. In 3 years Isaac will need \$6,000 to pay off a loan. What lump sum can be deposited today, at 9.5% compounded semiannually, so that he will have enough to pay off the loan?

Answer: The amount needed to be deposited is approximately \$4,541.79.

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Tue Aug 12 21:51:10 MDT 1997