The coordinates of point e are (-9, -5) and the coordinates of point f are (-2, -1) .

what is the slope of the line that is perpendicular to ef ?

enter your answer as a simplified fraction in the box .

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet