Leroy uses 20 pounds of fertilizer to cover 4,000 square feet of his lawn 1 point and 50 pounds to cover 10,000 square feet. How much does he need to

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.

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

Determine which postulate or theorem can be used to prove that lmn =nmo