Use a Calculator to Find the Approximate Value of the Expression

question 166

Multiple Choice

Use a calculator to find the approximate value of the expression rounded to two decimal places.
- $$\cos \frac { 3 \pi } { 7 }$$

• A) 0.22
• B) 1.05
• C) 1.00
• D) 0.27

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Definitions:

Inferior Good

A type of good whose demand decreases when consumer incomes increase.

Normal Good

An item that sees a rise in desire when the income of buyers increases, and experiences a decline in demand when the income of buyers drops.

Consumer Expectations

Anticipations of future prices, product quality, or available services that influence consumer decisions on spending and saving.

Normal Goods

Goods for which demand increases as consumer income rises, making them positively correlated with income changes.