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Two parallel lines are crossed by a transversal.what is value of x
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Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?
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In the geometric progression –3, 12, −48… what term is 3,072?
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Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?
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(cos6x+6cos4x+15cos2x+10)/(cos5x+5c os3x+10cosx)=?...
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