Agroup of students were doing a science experiment in which they measured wind speed and temperature. the first day the wind speed was 25 mph and the second day it was 17 mph. the first day it was 55°f outside and the second day it was 61°f. what was the difference in wind speed between the first and second day?

4 mph

6 mph

7 mph

8 mph

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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step-by-step explanation:

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step-by-step explanation:

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