Following is a statement of a theorem which can be proven using the quadratic formula. For this theorem, a, b, and c are real numbers. Theorem - If f is a quadratic function of the form f(x) = ax2 + bx + c and ac < 0,then the function f has two x-intercepts. Using only this theorem, what can be concluded about the functions given by the following formulas?(a) g(x) = -8x2 + 5x - 2(b) h(x) = (-1/3)x2 + 3x(c) k(x) = 8x2 - 5x - 7

Which system of linear inequalities is represented by the graph?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288