- What is a root from (-5)². (I attached photo) It is 5 or -5 ? and why? Thanks?

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How hard is Elementary Geometry in College is it hard? Does it have Statistics? Like Liberal Arts Math does.? When the minimum deflection angle occurs, how does light pass through the prism? Find the equation of the line that passes though (1,8). And is parallel to y=3x-4? Why is easy to convert between FeO, Fe3O4 and y-Fe2O3 through the application of heat? The terms 3x - 2, 6x + 1, & 9x + 4 are consecutive terms of an arithmetic sequence. How will you find the first three terms of the sequence?