Determine Whether the Sequence Is Geometric $- 2 , - 6 , - 18 , - 54 , \ldots$

question 67

Multiple Choice

Determine whether the sequence is geometric. If so, find the common ratio. $- 2 , - 6 , - 18 , - 54 , \ldots$

• A) 3
• B) \(- 2\)
• C) \(\frac { 1 } { 3 }\)
• D) \(- 3\)
• E) not geometric

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Definitions:

Weak Base

A base that does not fully dissociate in solution, resulting in a relatively low pH compared to strong bases.

pH

A scale used to specify the acidity or basicity of an aqueous solution, with values ranging from 0 (very acidic) to 14 (very basic), and 7 being neutral.

pH

A numerical scale ranging from 0 to 14 that determines the level of acidity or alkalinity in water-based solutions.

pH

A measure of the acidity or alkalinity of a solution, quantified on a scale where 7 is neutral, values less than 7 are acidic, and values greater than 7 are alkaline.