PLEASE PLEASE PLEASE 100 Points. A box in the shape of a rectangular prism has a volume of 72 cubic feet. The box has a length of x feet, a width of (x − 1) feet, and a height of (x + 9) feet. Find the dimensions of the box.

3ft × 2ft × 12ft

Step-by-step explanation:

(x + 9)(x - 1)(x) = 72

x³ + 8x² - 9x - 72 = 0

For the first root, use trial method.

Try factors of 72.

x = 3 satisfies the equation

If x = 3,

x + 9 = 12

x - 1 = 2

Dimensions are: 3 ft × 2ft × 12ft

step-by-step explanation:

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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