Two ships leave port at the same time. Ship A sails north at a speed of 30 mph while ship...
Two ships leave port at the same time. Ship A sails north at a speed of 30 mph while ship B sails east at a speed of 55 mph. (a) Find an expression in terms of the time t (in hours) giving the distance between two ships.
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|Speed xx ship x||xxx||mph|
|Speed xx xxxx Bx||xxx||mph|
|xx xxxxxxx speed = distance x time xxx|
|xxxxxxxxxx xxxxxxxx covered in north direction x 30t|
|xxx distance xxxxxxx in east direction = 55t|
|xx can xxxx the xxxxxxxx xxxxxxx point x xxx x by xxxxx pythagoras xxxxxx|
|xxxxxxxxxxxxxx = xxxxxxxx x perpendicular xxxx|
|xxxxxxxx xxxxxxx A and x = h2||x xxxx + xxxx|
|x xx||xxxxxxxxx / xxx|
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