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What is vertex form of the quadratic equation by completing the square y=-3x^2-12x+9? How does one "algebra"?? Is theoretical statement of a theory the framework? When point charges q1 = +2.1 μC and q2 = +9.4 μC are brought near each other, each experiences a force of 0.15 N. Distance between charge? A farm tractor tows a 3700-kg trailer up a 20 ∘ incline with a steady speed of 3.0 m/s.?