#1.At noon, Ship A is 100km west of ship B. Ship A is sailing south at 35 km/h and ship B is sailing north at 25 km/h. How fast is the distance between the ships changing at 4:00 P.M?
#2.A man starts walking north at 4 ft/s from a point P. Five minutes later a woman starts walking south at 5 ft/s from a point 500 ft due east of P. At what rate are the people moving apart 15 min after the woman starts walking?
#3.The alititude of a triangle is increasing at a rate of 1cm/min while the area of the triangle is increasing at a rate of 2 cm2/min. At what rate is the base of the triangle changing when the altitude is 10 cm and the area is 100cm2?
its too hard for me to do those..please help me please i have noo cluee :(
2007-05-01
18:14:33
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1 answers
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asked by
Anonymous