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Calculus: Find the volume of the solid generated by revolving the region around the Y axis inclosed by x=(squareroot5) y^2, x=0, y=-1, y=1? Use the echelon method to solve the following system of two equations in two unknowns. 3x+2y=7, 6x+4y=6? What is the density of nitrogen at 0 degrees C and 742 mmHg? How many mL of a 0.50M solution Ca(OH)2 are necessary to neutralize 40mL of a 0.25 M HNO3 solution - Picture attached? What factor increased sectional tension?