Using the quadratic formula what is 5x^2 - 11x - 12

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

What’s the volume of the triangular prism?