Lot 21 is a trapezoid with the two bases perpendicular to the road. the scale drawing below uses the scale 1/2 inch = 40 feet. base 1=3.5 inches base 2=5 inches height=4 inches what is the approximate area of lot 21? (1 acre = 43,560 square feet) a 1/2 acre b 2 acres c 2 1/2 acre d 3 acres

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)