Question

log0.8(13)
Round to 4 decimal places

Answer 1

\[\log_{0.8}13 \]

Answer 2

i got 0.0550 as my answer

Answer 3

did you compute
\[\frac{\ln(13)}{\ln(0.8)}\]?

Answer 4

i am thinking you did not
this is what i get
http://www.wolframalpha.com/input/?i=ln%2813%29%2Fln%28.8%29

Answer 5

\[
\ln(0.8) = \ln(8)-\ln(10) = 3\ln 2-\ln2 - \ln 5=2\ln2-\ln 5
\]

Answer 6

ohh i did 0.8^13. i see now