Use a Calculator to Give the Real Number Value $$y = \cos ^ { - 1 } ( 0.8910 )$$

question 438

Multiple Choice

Use a calculator to give the real number value. Round the answer to 7 decimal places.
- $$y = \cos ^ { - 1 } ( 0.8910 )$$

• A) \(1.1000010\)
• B) \(0.5063492\)
• C) \(0.4365083\)
• D) \(0.4712533\)

---

Definitions:

Spending

The amount of money expended by individuals, businesses, or governments on goods and services.

Monetarists

An economic philosophy highlighting the importance of government intervention in regulating the money supply.

Economic Growth

An increase in the production of goods and services in an economy over a period of time, usually measured by GDP.

Money Supply

The total amount of money available in an economy at a specific time, including cash, coins, and balances held in checking and savings accounts.