The height of water slides (in ft) at a water park is given below. 100, 70, 80, 90,110 it has been decided that the water slide with the lowest height would be discontinued. select all statements that describe the effects on the data set when the water slide with the smallest height would be discontinued. answer choices the mean will increase. the mean will decrease. the median will increase. the median will decrease. the mean will stay the same. the median will stay the same.

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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