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Polynomial that can be factored as (3x-4)(3x+4)

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex