In the triangle below, which of the following best describes DH ? A. Perpendicular bisector
B. Angle bisector
C. Median
D. Altitude

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

X+ y = 5 ; x - y =3 solve using linear combination

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10