Ten sailors return from shore and sleep randomly in their ten bunks (one sailor per bunk). (a) Let X be the number of sailors in the correct bunk. Compute (i) P[X = 10] (ii) P[X = 9] (iii) P[X = 8]. (b) Compute the expected number of sailors in the correct bunk, that is E[X].

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

Tim earns $120 plus $30 for each lawn he mows.write an iniqualityvto represent how many lawns he needs to mow to make more than $310

Which of these angles are supplementary? a. 100o and 90o b. 78o and 102o c. 54o and 146o d. 12o and 78o