Which of the following is the solution of log (x - 3)0.001 = -3 A) x = 5
B) x = 7
C) x = 13
D) x = 15

Question

Which of the following is the solution of log (x - 3)0.001 = -3 A) x = 5 
B) x = 7 
C) x = 13 
D) x = 15

anonymous · Answer

i think you are supposed to solve 
$$x-3=10$$

anonymous · Answer

since $\log_{10}(.001)=-3$

anonymous · Answer

on the other hand, it seems like you can always pick C as an answer, because it is C maybe 94% of the time

anonymous · Answer

$$0.001\log(x-3) = -3$$

$$\log(x-3) = -3000$$

$$x-3 = \frac{ 1 }{ e ^{3000} }$$

$$x = 3 + \frac{ 1 }{ e^{3000} }$$

anonymous · Answer

Or wait, I'm not sure what you're really asking...go with sat.

anonymous · Answer

I think x-3 is the base of the log,
$$\log_{x-3} 0.001 = 3$$Which you can rearrange as follows:
$$(x-3)^{-3}=0.001$$And solve to get x=13 as mentioned

anonymous · Answer

Ah, yes that makes much more sense :)

isaiah.feynman · Answer

Clarity of questions is essential.