Write an equation of the parabola in intercept form that passes through (-2, 0.05) with x-intercepts of — 7 and -3. An equation of the parabola is y=

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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.

Huong is organizing paperback and hardback books for her club's used book sale. the number of paperbacks is 12 less than three times the number of hardbacks. huong had 162 paperbacks. how many hardback books were there?