Can someone please help me solve this prob it says Solve for Theta and its a triangle with 9 on the adj side and 12 on the hypo side so im guessing the equation would be cosθ=9/12 can some one finish it and explain it because I'm very confused?

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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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rauschg

rauschg · hand

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1 and 0

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i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.