Solve the Problem $C = 60 + 40 \cos \left( \frac { \pi } { 3 } t - \frac { \pi } { 3 } \right)$

question 308

Essay

Solve the problem.
-A consumer notes the sinusoidal nature of her monthly power bills. In winter when she uses electricity to heat her home
and in summer when she cools her home, the bills are high. In spring and fall, significantly less electricity is used and the
bills are much smaller. The following function models this behavior. $C = 60 + 40 \cos \left( \frac { \pi } { 3 } t - \frac { \pi } { 3 } \right)$ Here C is the cost of power in dollars for the month t, 1 $1 \leq t \leq 12$ 2, with t = 1 corresponding to January. For what
values of t, 1 $1 \leq t \leq 12$ 12, is the cost exactly $80?

Grasp the importance of personal and subject-matter jurisdiction in the context of litigation and how the internet affects jurisdiction issues.

Distinguish between different types of jurisdiction, such as original, appellate, federal, and state, and their relevance in the legal system.

Realize the importance of negotiation skills and the qualities required for effective mediation.

Learn about online dispute resolution and its growing relevance in resolving internet-based and other types of disputes.

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Definitions:

Procedural knowledge

Refers to knowing how to perform or accomplish tasks, indicating a practical or operational form of understanding.

Factual knowledge

Information based on facts and actual events.

Autobiographical memories

Personal memories that form an individual's life story, including events, experiences, and the emotions and thoughts associated with them.

Flashbulb memories

Vivid, detailed memories of significant or emotionally charged events, which are believed to be recorded in the brain almost like a photograph.