4 years ago

Loga2=0.3812, loga3=0.6013, and loga5=0.9004

1 answer:

3 0

loga (2) = 0.3812
loga (3) = 0.6013
loga (5) = 0.9004
and we should know that loga a = 1

∴ loga (30a)³ = 3 loga (30a) = 3 loga (2 * 3 * 5 * a) = 3 ( loga 2 + loga 3 + loga 5 + loga a ) = 3 ( 0.3812 + 0.6013 + 0.9004 + 1 )
 = 3 * 2.8829 = 8.6487
The correct answer is option C. 8.6487

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