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anonymous
 5 years ago
ln8x=4 ?
anonymous
 5 years ago
ln8x=4 ?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[ln(8x) = 4 \iff e^4 = 8x\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0By the definition of the logarithm

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So then what would you do?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how do i solve for x?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well, you have \(8x = e^4\) If I told you that 7a = 25, how would you solve for a?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0would the answer be 6.82?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yep, or at least that's a close approximation.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay, so if were to have ln(5x)=12 how would ibegin with solving that?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Same deal. \[ln(a) = b \iff e^b = a\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Those two expressions are equivalent.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, so e to the 12 power = 5x ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0does it equal approx 162749.8?
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