Find the solution of the equation: 8^(1-x)=5 correct to four decimal places?

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2006-12-10 07:23:00 · 3 answers · asked by im_all_about_spades2003 1 in Science & Mathematics ➔ Mathematics

log 8^(1-x) = log 5
(1-x) log 8 = log 5
1 - x = log 5/log 8
1 - log 5/log 8 = x

Plug in calculator.

2006-12-10 07:27:34 · answer #1 · answered by Jim Burnell 6 · 0⤊ 0⤋

1-x log8=log5
1-x= .7740
x= .226

2006-12-10 07:28:01 · answer #2 · answered by 7 · 0⤊ 0⤋

x = -ln(5/8) / (3ln(2)) = .2260

2006-12-10 07:28:58 · answer #3 · answered by Alex 2 · 0⤊ 0⤋