Find the Length of a Radius of Each Circle $r = 20$

question 130

Multiple Choice

Find the length of a radius of each circle. Match each of the equations with length of a radius to obtain a true statement.
- $r = 20$

• A) \(x ^ { 2 } + y ^ { 2 } = 3\)
• B) \(x ^ { 2 } + y ^ { 2 } + 14 x + 6 y + 39 = 0\)
• C) \(x ^ { 2 } + y ^ { 2 } - 12 x + 20 y + 101 = 0\)
• D) \(x ^ { 2 } + y ^ { 2 } + 24 x - 32 y = 0\)

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Definitions:

Supply and Demand

The fundamental economic model describing how prices vary as a result of a balance between product availability and the desire of buyers.

Quantity Demanded

The aggregate quantity of a product or service that buyers are prepared to buy at a specific price point.

Demand Decreased

A situation where there is a reduction in the quantity of a product or service that consumers are willing or able to buy at given prices.

Supply Increased

A situation where the quantity of goods or services that producers are willing to offer for sale at a given price level rises.