Identify the Center and Radius of the Circle $$( x + 8 ) ^ { 2 } + ( y - 9 ) ^ { 2 } = 121$$

question 65

Multiple Choice

Identify the center and radius of the circle. $$( x + 8 ) ^ { 2 } + ( y - 9 ) ^ { 2 } = 121$$

• A) Center \(= ( - 8,9 ) ; r = 11\)
• B) Center \(= ( 8,9 ) ; r = 11\)
• C) Center \(= ( 8 , - 9 ) ; r = 11\)
• D) Center \(= ( - 8,9 ) ; r = 121\)

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Definitions:

Diastole

The phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.

Right Ventricle

The chamber of the heart responsible for pumping deoxygenated blood to the lungs for gas exchange.

Cardiac Muscle Cells

Specialized muscle cells found in the heart that contract rhythmically to pump blood throughout the body.

Skeletal Muscle Cells

Long, cylindrical cells that make up skeletal muscles, capable of contraction and responsible for voluntary movements.