Prove using coordinate geometry. prove that the points (0,0), (4,0), (4, 4) and (0, 4) create a rhombus and then show that the midpoints of the sides of a rhombus determine a rectangle.

Lassify the function as linear or quadratic and identify the quadratic, linear, and constant terms. f(x) = (3x + 2)(−6x − 3) linear function; linear term: −21x; constant term: −6 linear function; linear term: −18x2; constant term: −6 quadratic function; quadratic term: 6x2; linear term: 24x; constant term: −6 quadratic function; quadratic term: −18x2; linear term: −21x; constant term: −6

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer