What is the conjugate of 1/2 + 3/2i

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

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”?

If a line is defined by the equation y = 5x + 2, what is the slope?