alg1229love
alg1229love alg1229love
  • 28-08-2019
  • Mathematics
contestada

Solve for the equation y to the second power = 81

Respuesta :

gmany
gmany gmany
  • 29-08-2019

Answer:

y = -9 or y = 9

Step-by-step explanation:

[tex]y^2=81\iff y=\pm\sqrt{81}\\\\y=-9\ or\ y=9\ because\ (-9)^2=81\ and\ 9^2=81[/tex]

Answer Link
bekfast12 bekfast12
  • 29-08-2019

Answer:

9

Step-by-step explanation:

9*9=81

Answer Link

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