The distance between two piers is S miles. Two boats start moving simultaneously from different piers at speeds R and B respectively. Find the distance D between the boats T hours after they have started moving. a) in the direction of the first boat, if the first boat moves slower than the second boat,
b) in the direction of the first boat, if the first boat moves faster than the second boat

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 prove that all sides are congruent and have slopes that are opposite reciprocals prove that segments ad and ab are congruent and parallel prove that opposite sides are congruent and have equal slopes prove that segments bc and cd are congruent and parallel

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

Which of the following represents the length of a diagonal of this trapezoid?