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Do horses like people? Would it be possible to use electrodes attached to someone s head to make them see a video transmitting from a computer? In Algebra, if an eigenvalue of a matrix A is 3 and 5, what is the eigenvalue of matrix A^(-2)? How do I solve this? -6y=6x^2+24x+36 in finding the equation and vertex of the parabola? Is there a quick way to tell if a triangle is acute or obtuse with only the lengths of all 3 sides? pls explain thanks?