anonymous
  • anonymous
Solve for x algebraically in 7^(-x+2) = 0.005, rounding your answers to three signicant digits. A) 4.32 B) 4.72 C) 5.12 D) 5.52 E) 5.92
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
You'll need to use logs for this.
anonymous
  • anonymous
Do I use 7ln(-x+2) = ln 0.005 ???
anonymous
  • anonymous
You do take the log of both sides, but I would suggest using log base 10 and what you have there isn't quite correct even if you were going to use the natural log.

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anonymous
  • anonymous
Remember that \[log(a^b) = b*log(a)\]

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