An archway has vertical sides 10 feet high. The top of an archway can be modeled by the quadratic function f(x) = -0.5xsquared+ 10 where x is the

horizontal distance, in feet, along the archway. How far apart are the

walls of the archway? Round your answer to the nearest tenth of a foot.

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18}, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.