Wednesday

July 23, 2014

July 23, 2014

Posted by **jonathan** on Sunday, February 24, 2008 at 9:16pm.

- trig -
**Reiny**, Sunday, February 24, 2008 at 9:24pmlooks like a straightforward application of the cosine law.

120^2 = 90^2 + 135^2 - 2(90)(135)cosß

where ß is the angle between them

- trig -
**Damon**, Sunday, February 24, 2008 at 9:24pmShip A went 30 * 3 = 90 km

Ship B went 45 * 3 = 135 km

So we have a triangle with legs of 90 and 135 and an opposite side of 120

Use the law of cosines

120^2 = 90^2 + 135^2 - 2*90*135 cos T

solve for T

**Related Questions**

Pre Calc! - Two ships, one sailing at 30 km/hr and the other at 45 km/hr, left ...

Math - Two ships left the same port at the same time. One travelled at 16kn/h on...

Calculus - Two ships are leaving port at the same time. The first ship is ...

trig - Help! Ships A and B leave port at the same time and sail on straight ...

Algebra - At 3PM, two ships started sailing toward each other from ports which ...

algebra - At 3PM, two ships started sailing toward each other from ports which ...

Pre-Calculus-Trig - Two trains depart simultaneously from the same station. The ...

math - could someone show me how to write this or set up this equation?2 ships ...

Calculus - At noon, ship A is 50 nautical miles due west of ship B. Ship A is ...

Math - t noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing...