Tigress40
Tigress40 Tigress40
  • 21-04-2021
  • Mathematics
contestada

Solve 4r2 – 5 = 59
{± 3}


{± 4}


{± 5}


{±6}

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 21-04-2021

9514 1404 393

Answer:

  (b)  ±4

Step-by-step explanation:

  4r^2 -5 = 59 . . . . given

  4r^2 = 64 . . . . . . . add 5

  r^2 = 16 . . . . . . . . . divide by 4

  r = ±4 . . . . . . . . . . . take the square root

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