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Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.