Use Vectors to Find the Measure of the Angle at Vertex

question 49

Multiple Choice

Use vectors to find the measure of the angle at vertex B of triangle ABC, when , , and .Round answer to two decimal places.

• A)95.94°
• B)98.47°
• C)97.13°
• D)95.04°
• E)99.65°

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Definitions:

Nominal Exchange Rate

The rate at which one currency can be exchanged for another without adjusting for inflation, representing the current market price.

Schillings

A former unit of currency in Austria before the euro and also used in several other countries historically.

Purchasing-Power Parity

An economic theory that compares different countries' currencies through a "basket of goods" approach to determine exchange rates.

Dollar Appreciated

A situation where the value of the US dollar increases relative to other currencies, making foreign goods and services cheaper for Americans.