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How tall is the water fountain?

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A water fountain sprays water in the path of a parabola, as shown below.
From the fountain, the top of the water stream is 1 unit horizontally, and the endpoint of the water stream is 3 units horizontally (2 more units horizontally from the top of the water stream).
The top of the water stream is 3 units from the ground.
How tall is the water fountain?
enter image description here

posted Feb 23, 2022 by Anil Chaurasiya

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