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A train 180m long travels through a station at 60 km/h. Find how many seconds it takes for the train to pass a person who is standing on the station platform
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What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?
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A train 180m long travels through a station at 60 km/h. Find how many seconds it takes for the train...
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