[70 POINTS] What is the perimeter of the following composite figure?

21 yd

42 yd

47.13 yd

35.13 yd

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

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

Find the root(s) of f (x) = (x- 6)2(x + 2)2.