Find the Center and the Radius of the Sphere That $$x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 4 x + 8 y = 0$$

question 7

Multiple Choice

Find the center and the radius of the sphere that has the given equation. $$x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 4 x + 8 y = 0$$

• A) \(( 2 , - 4,0 ) , 2 \sqrt { 5 }\)
• B) \(( - 2,4,0 ) , 2 \sqrt { 5 }\)
• C) \(( - 2,4,0 ) , 20\)
• D) \(( 2 , - 4,0 ) , 20\)

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Definitions:

Microtubules

Cylindrical structures made of tubulin proteins that are part of the cytoskeleton in all eukaryotic cells and are involved in cell division, movement, and shape maintenance.

Eukaryotic Cell Division

Processes, including mitosis and meiosis, through which eukaryotic cells divide, ensuring accurate distribution of chromosomes to daughter cells.

Ribosomes

Cellular structures responsible for protein synthesis, reading mRNA sequences to assemble amino acids into polypeptides.

Protein Synthesis

The cellular process of building proteins from amino acids based on the instructions coded in DNA and mediated by RNA.