A ship leaves port travelling North West at 12 knots. A second ship leaves the same port 3 hours later travelling 20° West of South at 15 knots. Determine how long after the second ship leaves port that the ships will be 100 nautical miles apart.

6. To get to Michael's house, Angela leaves her house travelling at 40 km/h along a road in an easterly direction for 45 min. She then takes a 30° right turn onto a second road and travels at 50 km/h for 30 min before arriving at Michael's house. Determine an exact expression for the distance between the two houses.

please show how to solve this.

Cam and Cory are floating down a river in individual rafts when they both fall asleep. The river came to a fork and each went separate directions. Cam traveled 20° east of north, where Cory floated 5° west of north. When Cam woke up he estimated he had travelled about 750 feet after the fork. He phoned Cory to wake him up, where Cory then estimated he was about 1000 feet from the fork. If Cam decided to hike the distance between them to meet up, about how far will he have to hike? Round to the nearest foot. feet