If 18 is subtracted from twice the square of an integer, the result is equal to nine times the integer. Find the integer.
[Only an algebraic solution will be accepted.]

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Need showing work for this problem 56.25 ×25.80

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