Mathematics, 14.01.2021 01:00, 2021andrewkell

Given y varies jointly as x and the square of z, and y = 189 when x = 7 and z = 9. Find y when x = 2 and z = 6.

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Given y varies jointly as x and the square of z, and y = 189 when x = 7 and z = 9. Find y when x = 2...