Use the following statement to answer parts a) and b). One hundred raffle tickets are sold for $3 each. One prize of $400 is to be awarded. Winners do not have their ticket costs of $3 refunded to them. Raul purchases one ticket.

a) Determine his expected value.
b) Determine the fair price of a ticket.

11.3#12

i think it is 18

step-by-step explanation:

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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asdsad

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try soting them out first

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