Which relationship is always true for the angles x, y, and z of triangle ABC? x+z=y
y+z=x
x+y+z=180 degrees
x+y+z=90 degrees

This graph gives information on changes in sea ice extent in the arctic ocean over a 30-year span. the overall trend shows in the ice extent. to address the trend, scientists need to ask themselves, one direct consequence of the trend is that

Will mark brainliest how many electrons can be held in the energy level n = 4?

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".