Graph the system of constraints. Then choose the vertices of the feasible region. 6x+4y≤15

y≤3

x≥0

What situation is an example of an observational study

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

What is the area of the triangle 10 13 12