Complete the square to find
the vertex of this parabola.
x2 + 10x - y + 15 = 0
([?], [ ]

What is the sum of these mixed numbers 4 2/3+ 3 1/9

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never

What is the approximate difference in tenths between √12 and √15?