Use a half- angle to find the exact value of sin 157.5° b)

Last updated: 7/9/2022

Use a half- angle to find the exact value of sin 157.5° b) Peter and Li leave their hotel on rented cars at the same time and travel along straight highways that differ in direction by 80°. One car averages 60 miles per hour and the other averages 50 miles per hour. How far apart will the cars be after 30 minutes? Round to the nearest tenth of a mile.