What is the correct symbolic representation of this argument? “if dr. landerberg is a popular professor, then he cares about his students. but he cares about his students if and only if both he empathizes with their problems and delivers good lectures. thus, either dr. landerberg cares about his students or both he empathizes with their problems and delivers good lectures.”
a) l ⊃ c, c ≡ (e ∙ d) .·. c v (e ∙ d) b) (l c) v (e ∙ i) .·. c v (e ∙ l) c) l ≡ c .·. c v (e ∙ l)

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

rauschg · hand

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step-by-step explanation:

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).