Question

ln x = -4

Answer 1

Hello Jenn...
x = e^-4
Solve it to get the value for x

Answer 2

so the formula that you are using is what? Please remind me!

Answer 3

He's multiplying both sides by e

Answer 4

ln(x)=y becomes e^y = x

Answer 5

not quite outkast

Answer 6

ln x => log_e x log to base e
ln x = b then x = e^b

Answer 7

so the numeric answer is:
.018315638 ? Yes?

Answer 8

not quite are you teling me that e^ln(x) =e^-4

Answer 9

Exacly!!

Answer 10

yes, that's more like it

Answer 11

and e^ln(x) = x

Answer 12

oh i wrote it differently but i mean't what is above

Answer 13

oh ok

Answer 14

Joe shouldn't you be studying for your tutoring job haha

Answer 15

wow! such a debate! I hope I have it now! THANKS ALL!

Answer 16

\[ln(x) = -4 \]\[\implies log_e(x) = -4\]\[ \implies e^{-4} = x\]\[\implies x = \frac{1}{e^4} \approx .018316\]

Answer 17

I hate the log

Answer 18

=]

Answer 19

Everything you need to know about logs you learned in exponentiation.
Oh, and this \[log_b(a) = k \iff b^k = a\]