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in science, when a force moves an object, it's called work. scientists use the term to describe the amount of force applied to
an object that moves that object. work is measured in a unit called joules using the formula w=fd. in this formula wis the
work, f is the force in newtons, and d is the distance over which the force is applied in meters,
if applying 6 newtons of force to an object results in 42 joules of work, what distance (in meters) would the object trave?
252 meters
36 meters
14 meters
7 meters
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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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for volume, add base x height x width