Determine if the graph is symmetric about the x- axis, the y-axis, or the origin. r= 4 cos 5 theta

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.