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Mathematics, 21.06.2019 15:00
In a school 2/3 of the students study a language of those who study a language 2/5 study french
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Mathematics, 21.06.2019 16:00
Consider the reaction 2x2y2+z2ā2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.
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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
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Mathematics, 21.06.2019 21:30
The table shows the number of students who signed up for different after school activities. activity students cooking 9 chess 4 photography 8 robotics 11 select the true statements about the information in the table.
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Mathematics, 30.06.2019 16:30
Mathematics, 30.06.2019 16:30
Mathematics, 30.06.2019 16:30
Biology, 30.06.2019 16:30
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Spanish, 30.06.2019 16:30
English, 30.06.2019 16:30
History, 30.06.2019 16:30
History, 30.06.2019 16:30
Mathematics, 30.06.2019 16:30