What is the essential feature of data stored by geographical information systems?

Which graph correctly shows the system of equations {y=12x+2y=−12x+6?

What was the purpose of winston churchill’s “blood, toil, tears, and sweat” speech? a. to inform parliament about nazi aggression b. to inspire the british people to keep fighting the nazis c. to update parliament on what he had accomplished so far d. to convince parliament to go to war against nazi germany

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal