anonymous
  • anonymous
r^2+81=r^2+60r+900
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
can someone help me ?
anonymous
  • anonymous
thanks
amistre64
  • amistre64
ahh .... that r^2= typo had me confused

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amistre64
  • amistre64
r^2+81=r^2+60r+900 ; -r^2 both side 81 = 60r +900 ; -900 both sides -819 = 60r ;/60 -819/60 = r = -13.65
anonymous
  • anonymous
the r^2 i mean to be r squared sorry
myininaya
  • myininaya
amistre is correct
myininaya
  • myininaya
ok so we have r+81=r+60r+900?
anonymous
  • anonymous
yes
myininaya
  • myininaya
81=60r+900 -819=60r r=-819/60=-13.65
anonymous
  • anonymous
thank u
amistre64
  • amistre64
youre welcome :)

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