Create an expression, to equal 13, using any grouping of addition, subtraction, multiplication, and division. you must use all the basic operations at least once (addition, subtraction, multiplication, and division) and you must use at least three sets of parentheses. you can use exponents if you want as well. post your expression to the discussion board.

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