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Mathematics, 21.06.2019 14:10
Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?
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Mathematics, 21.06.2019 16:30
The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?
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Mathematics, 21.06.2019 19:20
The suare root of 9x plus 7 plus the square rot of 2x equall to 7
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Mathematics, 21.06.2019 20:20
Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)
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