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In the proof of the triangle angle sum theorem, you must draw an auxiliary line. which construction must you use to draw this line?

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”?

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?