Exact area of a circle with the diameter of 16

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

5. which description does not guarantee that a quadrilateral is a squar ajo is a parallelogram with perpendicular diagonals 0% has all sides congruent and all angles congruent o has all right angles and has all sides congruent 10% is both a rectangle and a rhombus 30%

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25