No Title

Math For Social Sciences. Practice Exam

Write each exponential statement in its equivalent logarithmic form:
- .
  
  Answer: .
- .
  
  Answer: .
Write each logarithmic statement in its equivalent exponential form:
- .
  
  Answer: .
- .
  
  Answer: .
Sketch each of the following graphs. Identify any intercepts and asymptotes in your sketch:
- .
  
  Answer:
- .
  
  Answer:
Solve each of the following equations for x. Give exact answers (i.e. no decimals).
- .
  
  Answer: .
- .
  
  Answer: x=10.
Solve each of the following equations for x. Round your answers to one decimal place.
- Answer: .
- Answer: .
If , , and ,
find .

Answer: The .
True or False:
- .
  
  Answer: False.
- .
  
  Answer: False.
- .
  
  Answer: True.
- .
  
  Answer: False.
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%.
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