Given that the universal set is all real numbers and set s is defined as the set of all x such that x is less than 5, which of the following is the complement of s? s = {x | x < 5}

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

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”?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.