What is the slope of the line perpendicular to a line that has a slope of 9?

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

What is the y intercept of f(x)=(1/2)^x?

True or false? a circle could be circumscribed about the quadrilateral below.