paigeleahfarbeoy2ork paigeleahfarbeoy2ork
  • 09-02-2018
  • Mathematics
contestada

The variable y varies directly with x^2 and y=72 when x=3

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tn0982p46cab tn0982p46cab
  • 22-02-2018
y=kx^2  (k being a constant)

72=k (3^2)
k=8

y=8x^2
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