The Equation Has Exactly One Positive Root

question 25

Multiple Choice

The equation has exactly one positive root. Locate the root between successive hundredths.
x ³ - 3x ² + 3x - 12 = 0

• A) between 3.11 and 3.12
• B) between 4.31 and 4.32
• C) between 2.22 and 2.23
• D) between 3.22 and 3.23
• E) between 2.02 and 2.03

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Definitions:

Cochlear Duct

A spiral-shaped cavity within the cochlea of the inner ear, playing a critical role in converting sound vibrations into neural signals.

Oval Window

The membrane-covered opening between the middle ear and the inner ear, transmitting sound vibrations to the cochlea.

Scala Vestibuli

Division of the cochlea lying above the spiral lamina and vestibular membrane.

Helicotrema

Opening at the apex of the cochlea through which the scala vestibuli and the scala tympani of the cochlea connect.