Mathematics, 05.07.2019 05:00 Jwelch4171
Aboat whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. the speed of the stream (in km/hr) is:
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Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?
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Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.
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Aboat whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 ho...
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