Suppose Spending for a Wireless Communications Services (In Billions of Dollars

question 81

Multiple Choice

Suppose spending for a wireless communications services (in billions of dollars per year) can be modeled by the function where represents 1995. Use equal subdivisions with right-hand endpoints to approximate the area under the graph of S(t) between and . Round your answer to one decimal place. ​

• A)1,079.1 billion dollars
• B)506.5 billion dollars
• C)575.3 billion dollars
• D)440.9 billion dollars
• E)539.5 billion dollars

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Definitions:

Phloem

The vascular tissue in plants responsible for the transport of nutrients such as sugars from the leaves to other parts of the plant.

Annual Rings

Concentric rings visible in the cross-section of a tree trunk representing a year's worth of growth; used to estimate age and historical climate conditions.

Tropical Rain Forest

A dense, warm, wet forest biome located near the equator, known for its high biodiversity and as the habitat for half of the Earth's plant and animal species.

Outward-Facing

Directed towards the exterior or outside of something.