The Cumulative Number (In Thousands) of Deaths from a Certain $$A = 2.39 x ^ { 2 } + 5.04 x + 5.1 , \text { where } x = 0 \text { corresponds to } 2000 , x = 1 \text { to } 2001$$

question 153

Multiple Choice

The cumulative number (in thousands) of deaths from a certain disease from 2000 to 2010 may be modeled by $$A = 2.39 x ^ { 2 } + 5.04 x + 5.1 , \text { where } x = 0 \text { corresponds to } 2000 , x = 1 \text { to } 2001$$ , etc. Use the formula for A to estimate symbolically the year when the total number of deaths reached 150 thousand.

• A) 2007
• B) 2008
• C) 2010
• D) 2009

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Definitions:

Series RC

A circuit configuration that features a resistor (R) and a capacitor (C) connected in sequence along a single loop, affecting the circuit's overall impedance.

Power Factor

The ratio of real power flowing to the load to the apparent power in the circuit in electrical engineering, measuring the efficiency with which the current is converted into useful work.

Phase Angle

The angle or phase difference between two waveforms or signals, often measured in degrees.

Circuit Current

The flow of electric charge in a complete or partial electrical circuit.