The temperature of a substance was - 11°C at first. Its temperature increased and reached a temperature of 25°C in 30 minutes. Find the average temperature change of the substance in degrees Celsius per second.

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 prove that all sides are congruent and have slopes that are opposite reciprocals prove that segments ad and ab are congruent and parallel prove that opposite sides are congruent and have equal slopes prove that segments bc and cd are congruent and parallel

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

I’m which figure is point g an orthocenter