anonymous
  • anonymous
What value of p solves the equation?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
I have done the equation multiple times, all I need is the answer, and I'll Fan + Medal.
Nnesha
  • Nnesha
what did YOU get ??

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More answers

anonymous
  • anonymous
I have erased/thrown away all of my work, and i have forgotten. sorry.
Nnesha
  • Nnesha
:P sounds familiar :P
anonymous
  • anonymous
Really?
Nnesha
  • Nnesha
yes....
anonymous
  • anonymous
oh..
Nnesha
  • Nnesha
just flip the fraction to convert negative to positive exponent x^{-m} is same \[\huge\rm \frac{ x^{-m} }{ 1 } = \frac{ 1 }{ x^m }\] m is an exponent
Nnesha
  • Nnesha
\[\huge\rm \frac{ p^{-5} }{ 1} = ???\]
Nnesha
  • Nnesha
here is ane example \[\rm \frac{ r^{-3} }{ 1 }=\frac{ 1 }{ r^3 }\]
anonymous
  • anonymous
so we flip it again..
Nnesha
  • Nnesha
yes right
Nnesha
  • Nnesha
so \[\huge\rm \frac{ p^{-5} }{ 1} = ???\]
Nnesha
  • Nnesha
how would u write it after that ?
Rushwr
  • Rushwr
this is easy okai \[\frac{ 1 }{ P ^{5}}= \frac{ 1 }{ 3^{5} }\]
Nnesha
  • Nnesha
should let him do it.
anonymous
  • anonymous
im still confused
anonymous
  • anonymous
its ok if she helps me
Nnesha
  • Nnesha
sure it's!!!!
anonymous
  • anonymous
ok, so what do i do.
Nnesha
  • Nnesha
if i don't know how to flip that fraction then how would i find the answer ? that's what i meant.
Nnesha
  • Nnesha
so look at her comment p^{-5} is equal to 1/p^5
Rushwr
  • Rushwr
\[3^{5}=243\] right?
Rushwr
  • Rushwr
\[P ^{-5}=\frac{ 1 }{ P ^{5} }\] I hope you get this ?
anonymous
  • anonymous
if you could explain it.
anonymous
  • anonymous
?
Rushwr
  • Rushwr
Actually that's a principal ! ^_^
Nnesha
  • Nnesha
this is exponent rule when you see `negative ` exponent you should flip the fraction \[\huge\rm \frac{ p^{-5} }{ 1 }=\frac{ 1 }{ p^5}\] you agree ?
anonymous
  • anonymous
yes?
Nnesha
  • Nnesha
you are asking me ?
anonymous
  • anonymous
wat
anonymous
  • anonymous
can i please have the answer?
Nnesha
  • Nnesha
\[\frac{ 1 }{ p^5 }=\frac{ 1 }{ 243 }\] cross multiply
Nnesha
  • Nnesha
do you know how to cross multiply ?
anonymous
  • anonymous
yes, but isnt it just the same?
Nnesha
  • Nnesha
what do you name `same` ?
Nnesha
  • Nnesha
|dw:1440178687228:dw| cross multiply then take 5th root both sides
Nnesha
  • Nnesha
no it wouldn't be the same
anonymous
  • anonymous
i thought it would...
Nnesha
  • Nnesha
no in the original equation u have fraction 1/243 and negative exponent but when you cross multiply you will get \[\huge\rm p^5=243\]
anonymous
  • anonymous
so what would p =?
Nnesha
  • Nnesha
take 5th root to cancel out 5 exponent
Nnesha
  • Nnesha
then use calculator ....
Nnesha
  • Nnesha
\[\huge\rm \sqrt[5]{p^5}=\sqrt[5]{243}\]
Nnesha
  • Nnesha
you can calculator right ??
anonymous
  • anonymous
yes
anonymous
  • anonymous
it says that 5 / 243 is 77.94228634
Nnesha
  • Nnesha
5/243 what's that ?
Nnesha
  • Nnesha
you not dividing 5 by 243
anonymous
  • anonymous
ooohhh
anonymous
  • anonymous
3
anonymous
  • anonymous
does p = 3?
Nnesha
  • Nnesha
yes...
anonymous
  • anonymous
ok thanks

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