Line j has a slope of Line k has a slope of } . Are line j and line k parallel or perpendicular?
parallel
perpendicular
neither
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What two consecutive odd integers have a sum of -28

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36