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Finding Geometric mean

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Compute the geometric mean of the following percent increases: 2, 8, 6, 4, 10, 6, 8, and 4.

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Analytical Geometry - Find the locus of a vertex.

The equation of the circle is given as:


A parallelogram is constructed as follows:
Vertex O is at the origin, vertex A is on the circle, vertex C is on the y-axis and the diagonal AC is parallel to the x-axis.

See attached figure

1. Find the locus of vertex B.
2. Describe the geometrical shape that is described by the equation you found in part 1, and find its intersection points with the axis.

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