The movement of a projectile, thrown upwards vertically, is described by the equation y = - 40x + 200x . Where y is the height, in meters, reached by the projectile x seconds after launch. Therefore, determine the instant when the projectile hits the ground.

The chart below shows the distribution of weeds in yard

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.