What is the resultant displacement in a coordinate system when a vector of magnitude 10 and direction 30 degrees is added to a vector of magnitude 8 and direction 120 degrees?
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Math question: What is the equation of a parabola that opens upward, has its vertex at (3, 2), and passes through the point (1, -1)?
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Find the median weight (in kg) of 10 randomly selected athletes: 45, 50, 55, 60, 65, 70, 75, 80, 85, 90.