Thursday

July 24, 2014

July 24, 2014

Posted by **Emily** on Tuesday, May 25, 2010 at 12:40am.

"A ship leaves port and sails for 2 hours northeast and then 3 hours northwest. If the speed remains constant, what course should the ship take home?"

- Math Analysis -
**Reiny**, Tuesday, May 25, 2010 at 7:26ammake a sketch, you should have a right-angled triangle with sides 2 and 3 and the angle of 90° between the 2 and 3.

Mentally you should be able to calculate the hypotenuse to be √13

That would be the time to get back.

Find the angle at the top of the triangle by

tan A = 2/3

A = 33.69°

By laying a NSEW direction pattern over point A, you would have a bearing of 168.69°

**Related Questions**

pre-calc - a ship leaves port and sails for 2 hours north east and than 3 hours ...

Trigonometry - If a ship leaves port at 9:00 a.m. and sails due south for 3 ...

math- precalculus - I've attempted this problem a few times but I can't get the ...

physics - A viking sails from his home port and travels east at 15km/hr.after 10...

math - A ship leaves a port at 12:00 Noon and sails East at speed of 10 miles/...

math - A ship leaves a port at 12:00 Noon and sails East at speed of 10 miles/...

math - A ship leaves a port at 12:00 Noon and sails East at speed of 10 miles/...

Trig - A ship leaves its homeport and sails on a bearing of N28degrees10'E. ...

I NEED URGENT HELP!!! - A ship leaves port at 1:00 P.M. and sails in the ...

geometry - A ship leaves port and heads due east at a rate of 32 miles per hour...