What could explain what happened when the time was equal to 120 minutes?

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step-by-step explanation:

answer:

alright, lets get started.

lets split the given graph in three parts. first part: 0 to 30 minutes we can see between this period, 0 to 30 minutes, the distance from home keeps increasing. it means from 0 to 30 minutes, eli is moving towards the library. second part: 30 to 120 minutes between 30 to 120 minutes,the distance from home does not changes. it means during this period, eli is at the library.third part : 120 minutes to 135 minutesbetween 120 to 135 minutes, the distance from home is decreasing. it means eli is returning home in that period.it means, at 120minute, eli started her bicycle , home from the library.

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step-by-step explanation:

where is the triangle?

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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