Does anyone knows how to do angle addition?

The graph shows the distance kerri drives on a trip. what is kerri's speed?

Which of these would have been most likely to have been a carpetbagger during the reconstruction era? a) a new york businessman who relocated to mississippi b) a former slave who was able to buy land in birmingham c) a carolina-born politician who supported the democratic d) a former confederate officer who owned a farm in memphis eliminate

Find the measure of angle a in the following triangle