Suppose US

question 23

Multiple Choice

Suppose U.S. factory sales of electronic goods to dealers from 1990 through 2001 can be modeled by the equation Sales billion dollars
Where x is the number of years since 1990. Use a definite integral to approximate, to four decimal places, the average value of U.S. factory sales of electronic goods to dealers from 1990 through 2001.

• A) 65.3150 billion dollars
• B) 67.8439 billion dollars
• C) 69.9610 billion dollars
• D) 66.4599 billion dollars
• E) 70.6117 billion dollars

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Definitions:

Pahoehoe Lava

A form of basaltic lava exhibiting a smooth, unbroken surface and often developing into rope-like patterns.

Aa Lava

A type of lava flow with a rough, jagged surface, characterized by its slow movement and thick, viscous nature.

Vesicles

Small holes found in a volcanic rock, representing gas bubbles in a magma that were trapped when the lava solidified.

Welded Tuff

A type of rock formed by the compaction and cementation of volcanic ash and debris, heated enough post-deposition to weld together.