Adiagonal of a parallelogram measures 37 inches. the sides measure 35 and 1 foot. is the parallelogram a rectangle? explain your reasoning.

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

What is the range? can’t seem to find it out

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)