Mathematics, 27.07.2021 01:30 williedenmark42

The quantity z varies jointly with x and y. If x=-1 and y=-9, and z=- 36, find z when x=2 and y=-1.

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The quantity z varies jointly with x and y. If x=-1 and y=-9, and z=- 36, find z when x=2 and y=-1....

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