SOLUTION: Evaluate the following expressions: a. log downward exponient 13 1 b. ln e upward exponient 8 c. log downward exponient 27 27 d. log downward exponient 9 27

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Evaluate the following expressions: a. log downward exponient 13 1 b. ln e upward exponient 8 c. log downward exponient 27 27 d. log downward exponient 9 27      Log On


   

Question 1115970: Evaluate the following expressions:
a. log downward exponient 13 1
b. ln e upward exponient 8
c. log downward exponient 27 27
d. log downward exponient 9 27
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
"downward exponient"
?
What's that?


Here is a GUESS for two of the examples.


EXAMPLE c
-
Your base is 27 and your "antilog" is 27. The "logarithm" you are looking for is the exponent. If your log is variable x, then you could also say 27%5Ex=27-------OBVIOUS!
log%2827%2C27%29
highlight%281%29
(do you understand why?)



EXAMPLE d
log%289%2C27%29-------the most likely correct notation
x=log%289%2C3%5E3%29--------giving a variable to the "logarithm", for help when converting into exponential form
9%5Ex=3%5E3---------------now in exponential form
%283%5E2%29%5Ex=3%5E3
3%5E%282x%29=3%5E3
2x=3
highlight%28x=3%2F2%29
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These steps should now be clear.