Noah finds an expression for    that gives the volume of an open-top box in cubic inches in terms of the length    in inches of the cutout squares used to make it. this is the graph noah gets if he allows  to take on any value between -1 and 5.

  expand image
what would be a more appropriate domain for noah to use instead? 9
what is the approximate maximum volume for his box?

this doesn't make sense lol

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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rauschg

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