Need to show work for problem x+9.72=21

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)

If the discriminant if a quadratic equation is 4 which statement describes the roots?