What is the perimeter of a polygon with vertices at (-2, 1), (-2, 7), (1, 11), (4,7), and
(4, 1)?
enter your answer in the box. do not round any side lengths.
units
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Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.

Which statements are true about additional information for proving that the triangles are congruent check all that apply