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Which expression is equivalent to 9x5 +3x(4x4–3x2)

Abouncy ball is dropped such that the height of its first bounce is 5.5 feet and each successive bounce is 64% of the previous bounce's height. what would be the height of the 7th bounce of the ball? round to the nearest tenth (if necessary).

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv