Express the vector (4,-6) in terms of the standard unit vectors i and j

What is the circumference of the pie

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

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25