Me . luke skywalker's height is 68 inches. the mean height for all jedi is 66.5 inches and the standard deviation of the jedi heights is 2.4 inches. what is the z score for luke skywalker's height? round to the nearest thousandth

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Percent increase and decrease. original number: 45 new number: 18

Consider the first four terms of the sequence below. what is the 8th term of this sequence?