1. A car's velocity is modeled by v(t) = 0.5t² - 8t + 24 for 0 ? t ? 8, where the velocity is in feet per second and time is in seconds. When does the car come to a complete stop?

2.

x2 A satellite orbits the Earth with an elliptical orbit modeled by - = 1, where the distances are measured in km. The Earth shares the same center as the orbit. If the radius of the Earth is 6,370 km, what is the maxi 43,824,400 47,196,900 distance between the satellite and the Earth? 250 km O 500 km 6,620 km 6,870 km