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Y varies directly as the square of r If y equals 405 when are equals 9 find y when are equals 2?
Updated: 10/25/2022
Wiki User
∙ 14y agoBest Answer
y / r2 = a constant (k) so k = 405/81 ie 5. k = y/4 when r = 2, so y = 20.
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∙ 14y agoThis answer is:
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