Se deja caer una pelota desde la azotea de un Edificio y tarda 15 segundos en caer al suelo, cual es su altura del edificio y su velocidad, ayuda pli

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

Using elimination, what is -4x+2y=-12 4x+8y=-24