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Aset of positive integers {1, 2 , 3 , 4, 5 , 6 , 7 , 8 , 9} is used to form a pack of nine cards. each card displays one positive integer without repetition from this set. grace wishes to select four cards at random from this pack of nine cards. (a) find the number of selections grace could make if the largest integer drawn among the four cards is either a 5, a 6 or a 7.
Answers: 1
Mathematics, 21.06.2019 19:30
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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Mathematics, 21.06.2019 20:30
Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how
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Aset of positive integers {1, 2 , 3 , 4, 5 , 6 , 7 , 8 , 9} is used to form a pack of nine cards. ea...
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