Solve the following problems. Solutions and diagrams are required. (10 pts each) 6. Get the ~ of: y = (2x+1\\ 7. A skydiver jumps from a plane at an elevation of 10,000 meters and fell freely for 30 seconds at an acceleration of 9 m/s2 before deploying the parachute. An observer on the ground, 100 m from the spot where the skydiver will land uses a telescope inclined at angle O with the horizontal. Determine the rate at which the angle is changing at the time the parachute was deployed. 8. A box is to be made with an open top from a sheet of cardboard by cutting four equal squares out of the corners and turning up the sides. If the cardboard sheet measures 12 by 12 inches, what could be the maximum volume of the box? 9. Evaluate lim 1-cosx x-0 2x2 port