What is the midpoint of the segment shown below?

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”?

Which of the following represents the factorization of the trinomial below? x^2+7x-30

Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.