Find the area of a circle with a circumference of 18.84 units

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

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

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !