Find P(getting a sum of 6 OR getting at least one die with a 6 on it). A. 17/36 or -47.296

B. 11/36 or -30.696

C. 5/36 or -13.8%

D. 16/36 or -44.496​

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.