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7. Change the equation to standard form. Neatly sketch the graph and then fill in the blanks. -6x2 + 10y2 + 12x + 180y +

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7. Change the equation to standard form. Neatly sketch the graph and then fill in the blanks. -6x2 + 10y2 + 12x + 180y + 744 = 0 Center: Vertices: Foci: 8. An arch for a bridge over a highway is in the form of a semiellipse. The top of the arch is 22 feet above ground. What should the span of the bridge be if the height 32 feet from the center is 4 feet above the ground

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