Se lanza un cuerpo verticalmente hacia arriba con una velocidad inicial de 100m/s, luego de 4.00s de efectuado el lanzamiento su velocidad es de 60.0m/s. porfavor ayudenme​

This question awards 100 ! i really don’t want to fail i will also mark you !

Which one is true about the hexagons ?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.