This table shows the population of a city every ten years since 1970. Years Since 1970 Population (In thousands) у 489 27. Find the best-fitting quadratic model for the data. Round to 3 decimal places. 0 10 801 20 1.202 30 28. 1,998 Using this model, what will be the estimated population in 2020? 40 2,959

show us the graphs dude

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unless if u could do my questions, if not i wouldn't want to

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

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the answer is 89 d

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