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What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Find the value of x in the diagram below. select the best answer from the choices provided