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SCORPION-xisa [38]
3 years ago
10

Solving Exponential Equations (lacking a common base) (0.66)^k=9

Mathematics
1 answer:
Alexandra [31]3 years ago
3 0

Answer:

k = log9 / log 0.66

k = 5.3

Step-by-step explanation:

Please always remember that, when an exponential equation is given with different bases, the best approach is to take log of both sides.

If you have a calculator handy, that would be pretty fast and easy.

0.66 ^ k = 9

Take log of both sides:

klog 0.66 = log 9

k = log 9 / log 0.66

k = 0.954 / - 0.18

k = -5.3

Maths is fun, let's keep learning

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