( a - b ) ( a + b) + (b -c ) ( b+ c ) + ( c - a) ( c + a ) = o

Rose drew a regression line for this paired data set. her line passed through (1, 2) and (3, 5) . what is the equation of rose's regression line?

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0