Find the midpoint 80 90

Add 1/7 + -1/7 your answer should be reduced to its smallest form and should not be an improper fraction

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 a perfect cube? a. x8 b. y24 c. m28 d. x64