Final answer:
The majority issues a written opinion for most appeals trials to establish legal precedent, challenge and overturn precedent, and provide transparency into the decision-making process within the Court.
Step-by-step explanation:
The majority issues a written opinion for most appeals trials for several reasons. First, the majority opinion explains the Court's reasoning for their decision, including links to precedent and related cases. This helps establish a clear and consistent legal framework for future cases. Second, dissenting opinions from justices who disagree with the majority are also important because they can be used in later cases to challenge and overturn precedent. Finally, the written opinions provide transparency and insight into the decision-making process within the Court.