A Function That Models the Population (In Thousands) of Children

question 184

Multiple Choice

A function that models the population (in thousands) of children under the age of 18 in a certain town, t years after 2010 is C(t) =0.0013t²-0.163t+15.82 . A function that models the population (in thousands) of adults aged 18 or over of the same town, t years after 2010 is A(t) =0.0063t²-0.217t+25.08 . Find the equation of a function that models the estimated population of the town t years after 2010 .

• A) P(t)=0.0076t²-0.054t+40.9
• B) P(t)=0.0076t²-0.38t+40.9
• C) P(t)=0.0063t²+0.0013t+40.52
• D) P(t)=0.0076t²-0.38t+9.26

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Definitions:

Bedrock Channels

Channels carved into the underlying bedrock by the erosive action of flowing water, often seen in riverbeds and streambeds.

Water Velocity

The speed at which water flows in a given direction within a stream, river, or other body of water.

Delta

A landform at the mouth of a river where it splits into several outlets, depositing sediment and forming an area often rich in wildlife and agriculture.

Discharge

The volume of fluid passing a point within a given time, commonly used in reference to the flow of rivers and streams.