Sample Test
 
 
 

1)  Simplify each:
                     a)  4 . 2-4 =                     b)  (4 . 2)-4 =              c)  (a-1 + b-1)-2 =
 
2)  Simplify each:
 
 
 
3)  Solve the equation:  93x = 81x + 1
4)  The half life of a radioactive isotope is 7 days.  If 5.6 kg are present now, how much will be present in t days?  In 13 days?
 
5)  A bacteria colony triples every 6 days.  The population currently is 5000 bacteria.  What will be the population in 21 days?
 
6)  $1000 is invested at 8% compounded quarterly for 3 years.  How much interest will you receive at the end of the time period?
 
7)  You invest $3000 at 7% compounded continuously for 2 years.  How much money will be in the account at the end of the time period?
 
8)  Solve each log equation:
                 a)  Log x = 21
 
                 b)  Log |x| = 15
 
                 c)  Ln (x2 - 1) = 3
 
                 d)  Log x = 1.6  (Use calculator and round to hundredths.)
 
9)  Write each log as a single log:
 
                 a)  Log x + log y + 2Log z
 
                 b)  Ln x + Ln y - 3Ln z
 
10)  Simplify each log:
 
                 a)  Ln e5 =
 
                 b)  102log4 =
 
                 c)  101 + log 5 =
 
11)  Solve the equation:  Log (x + 2) + Log 5 = 4
 
12)  Graph y = 3x and y = log3 x on the same axis.
 
13)  Use a calculator to find Log7 58 and round to hundredths place.
 
14)  Solve the equation:  15x + 1 = 29 and round to hundredths place.
 
15)  How long will it take to double $1000 if invested at 6% compounded monthly?


Hope you were successful with the sample test.  Want to head toward the answers?
 
Send me back, it was way to tough!!