What is the smallest value of y in the solution set to the system of equations below y=x^2+6x-9?

What is the area of the triangle 10 13 12

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no