Three  off these points are in a straight line. Find the equation of the line . (4,2) ,(1,2) , (-2,4) and (-5,2)

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

What is the greater volume 72 quarts or 23 gallons

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