Solve and Give Interval Notation for the Solution Set $3 x < 9 \text { or } x + 4 \geq 12$

question 186

Short Answer

Solve and give interval notation for the solution set. Then graph the solution set.
- $3 x < 9 \text { or } x + 4 \geq 12$


A) $( - \infty , 8 ]$


B) $( - \infty , 3 ) \cup [ 8 , \infty )$


C) $( - \infty , - 8 ] \cup ( 3 , \infty )$


D) $( 3 , \infty )$

• A) \(( - \infty , 8 ]\)
• B) \(( - \infty , 3 ) \cup [ 8 , \infty )\)
• C) \(( - \infty , - 8 ] \cup ( 3 , \infty )\)
• D) \(( 3 , \infty )\)

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Definitions:

Industrial Rock

Minerals and rocks exploited for their economic value that are not primarily sourced for their gem or precious metal content, such as limestone or sandstone.

Iron Ore

Naturally occurring rocks and minerals from which metallic iron can be economically extracted.

Gypsum

A common calcium sulfate mineral, generally formed by the evaporation of water.

Clay

A fine-grained natural soil material containing clay minerals, known for its plasticity when wet and used in ceramics.