Population within 50 mile radius of paso robles, ca

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

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?