The length of time it takes an object to fall to the ground varies directly as the square root of the height font which it is released. if an falls for 4.2 seconds, at what height was it released? round your answer to two decimal places

Who long does it take to drive 150 miles at 45 miles per hour

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?

For what values of a is the sum of the fractions 2a−1 / 4 and a−1 /3 positive?