Chairs from a manufacturer have an average height from the leg to the top of the seat of 19 inches with a standard deviation of 0.5 inches. How tall would a chair need to be from the assembly line to be among the shortest 10% of chairs

Solve the system of equations. y= 2x y= x^2 - 15

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 =

|p| > 3 {-3, 3} {p|-3 < p < 3} {p|p < -3 or p > 3}