Atrucker hauls citrus fruit from florida to montreal. each crate of oranges is 4 ft3 in volume and weighs 60 lb. each crate of grapefruit has a volume of 6 ft3 and weighs 75 lb. his truck has a maximum capacity of 300 ft3 and can carry no more than 4800 lb. moreover, he is not permitted to carry more crates of grapefruit than crates of oranges. if his profit is $2.50 on each crate of oranges and $4 on each crate of grapefruit, how many crates of each fruit should he carry for maximum profit?

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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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step-by-step explanation:

answer: the correct answer is -32

step-by-step explanation:

a)(x-2)^2+(y-1)^2=9

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