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For the graph, what is a reasonable constraint so that the function is at least 300?

graph of y equals minus 2 times the square of x plus 50 times x plus 300

A. x ≥ 0
B. −5 ≤ x ≤ 30
C. 0 ≤ x ≤ 25
D. All real numbers

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

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Select the two pairs of figures that are similar.