anonymous
  • anonymous
5^(x + 5) = 9^x solve choices attached
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
I don't get any of those multiple choices !!... what have you erased ??
anonymous
  • anonymous
i ws tryna draw an arrow

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anonymous
  • anonymous
forst in black then failed then in blue and failed
anonymous
  • anonymous
i just need to get that equation into log format or something
anonymous
  • anonymous
Hey there, yes, you do need to put it into LOG
anonymous
  • anonymous
So, what do you need to do to bring down the exponent x?
anonymous
  • anonymous
i think so a 10?
anonymous
  • anonymous
Cheeto, try to log both sides to bring the exponents
anonymous
  • anonymous
If you were to log both sides, it would turn out as: 5LOG(x + 5) = 9LOGx
anonymous
  • anonymous
I think kropot is cooking a better explanation...
kropot72
  • kropot72
\[5^{(x+5)}=9^{x}\] \[5^{x} \times 5^{5}=9^{x}\] \[5^{5}=(9\div5)^{x}\] Taking logs to base e of both sides: \[\ln 5^{5}=x(\ln 9-\ln 5)\] \[x=(5\times \ln 5)\div(\ln 9-\ln 5)\]
anonymous
  • anonymous
thank you guys i got it
kropot72
  • kropot72
You're welcome. The correct choice is of course 13.69.
anonymous
  • anonymous
yes i got that now can you help me log format one more?
kropot72
  • kropot72
I'll try!

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