The steps to derive the quadratic formula are shown below: step 1 ax2 + bx + c = 0 step 2 ax2 + bx = − c step 3 step 4 x2 + step 5 x2 + step 6 step 7 step 8 x = − step 9 x = which of the following is the first incorrect step? step 2 step 3 step 4 step 7

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