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Mathematics, 21.06.2019 17:00
Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.
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Mathematics, 21.06.2019 23:30
The product of sin 30 degrees and sin 60 degrees is same as the product of
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What is the arithmetic mean of 4,9,6,3,4,2?...
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