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When turned about its axis of rotation, which shape could have created this three-dimensional object?

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length