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explain all steps please..im an idiot

2007-01-26 15:29:30 · 4 answers · asked by Anonymous in Science & Mathematics Mathematics

4 answers

15= 47.898 * .962445^x
15/47.898 = .962445^x
.313 = .962445^x
log .313 = log .962445^x
log .313 = xlog .962445
log .313/log .962445 = x
30.361= x

2007-01-26 15:40:09 · answer #1 · answered by ironduke8159 7 · 0 0

Don't pay attention to the second asnwer. The first answer is correct.
Also, just in case you've never gone over natural logs, the answer could also have been obtained by following those steps but using the common log, base 10.

2007-01-26 15:45:48 · answer #2 · answered by haxxormaster 2 · 0 0

15 = 47.898 *.962445^x
15/47.898 = .962445^x .... reduces it to just the power function

let 15/47.898 be represented as N

x = (log N)/(log .962445) changes the base of the logarithim to the .962445, and giving you the value of x simultaneously

2007-01-26 15:43:42 · answer #3 · answered by spacey_post 2 · 0 0

15= 47.898 * .962445^x divide both sides by 47.898
15/47.898=0.962445^x take ln of both sides
ln(15/47.898)=x ln 0.962445 divide both sides by ln 0.962445
x=ln (15/47.898) / ln (0.962445)
x=30.33107

2007-01-26 15:36:44 · answer #4 · answered by yupchagee 7 · 0 0

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