Each year the department of waterworks measures the Corail country level in water the first year they found the Clore concentration change my -1 3/5 MGU it’s estimated that the quarry registration will change -2 1/5 MG you the next year what is the total change that would likely occur in two years

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