anonymous
  • anonymous
Solve 4r2 – 9 = 91. A. {± 3} B. {± 4} C. {± 5} D. {±6}
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
i think its c
anonymous
  • anonymous
r=5 or r=−5 this might help it also show the steps on how to figure it out just type or past the question: http://www.mathpapa.com/algebra-calculator.html
anonymous
  • anonymous
so C?

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anonymous
  • anonymous
@EveTheAwsome
anonymous
  • anonymous
Yes

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