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What is the equation for the parabola with focus (-2,0) and diretrix x=2? What is the angle of rotation of 5x(squared)+3√3y+2y(squared)+10x-16y=0? How many flowers would you have to plant to offset CO2 emissions of a small vehicle like a Corolla? What is the pH of a solution containing 0.35 M HCOOH and 0.59 M HCOOK? The Ka for HCOOH is 1.7 × 10−4.? How many milliliters of 0.750 M HCl solution can be made from 40.0 mL of 12.0 M HCl solution?