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Maths: EASY LOGARITHM: How to solve for k? Log base k 27=-3/2?
Please write out the steps for mee :) thanks
2 Answers
- llafferLv 76 years ago
log-k(27) = -3/2
If we make both sides of the equation an exponent over a base of "k", that and the log of the same base will cancel out leaving only the 27 inside. Now we have:
27 = k^(-3/2)
Now if we take both sides to the (-2/3) power, we get k by itself and our solution:
k = 27^(-2/3)
Turn the fraction form into a radical form:
k = ∛(27^(-2))
That simplifies to:
k = 3^(-2)
and simplifies again:
k = 1/9
- Anonymous6 years ago
Okay start with log base k 27=-3/2
Next you want to get rid of base k so k^(-3/2)=27
Now you want k to the power of one so (k^-3/2)^(-2/3)=27^(-2/3)
K=27^(-2/3) solve for k and thats ypur answer