3. The following table shows the depth in feet at some cross-section checkpoint of the Allegheny River (Pennsylvania) measured at 100 foot intervals from one side of the river. distance (feet) || 0| 100 | 200 depth (feet) 300 | 400 | 500 | 600 | 700 | 800 |0 11.5 17 18.5 20 19 15 13 If the current (water flow) was 3 feet per second, use the trapezoidal rule to estimate the volume of water flowing through this cross-section in 2 seconds.

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