What is the area of a square unit with sides of length 8

What are the sotions to the quadratic equation 9x^2=4

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.

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