What is the value of x?, i’m confused on how to do the triangle theorem.

Find the value of the variable and the length of each secant segment.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

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