contestada

Which equivalent to log 20?

A. log 10 x log 2
B. log 15 + log 5
C. log 30 - log 10
D. log 60/log 3
E. log 80 - log 4

Respuesta :

Answer:

B and C

Step-by-step explanation:

I think this is the answer hope this helps

Answer:  Choice E

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Reason:

log(80) - log(4)

log(80/4)

log(20)

The rule used is log(A) - log(B) = log(A/B)

Using a calculator,

  • log(80) - log(4) = 1.30103 approximately
  • log(20) = 1.30103 approximately

which helps confirm the answer. The logs I used were base 10, but it could be any base really.