Write an equation of the perpendicular bisector of the segment with the endpoints (2,1) and (6,3).

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is