The rate of U.S. per capita sales of bottled water for the period 1993-2003 could be approximated by $Q ( t ) = 0.05 t ^ { 2 } + 0.4 t + 9$ where t is the time in years since 1990.
Compute the average annual sales of bottled water over the period 1996-2003, to the nearest gallon per year.

A)16 gallons per year
B) 15 gallons per year
C) 17 gallons per year
D) 18 gallons per year
E) 19 gallons per year

Question

The rate of U.S. per capita sales of bottled water for the period 1993-2003 could be approximated by $Q ( t ) = 0.05 t ^ { 2 } + 0.4 t + 9$ where t is the time in years since 1990.  
Compute the average annual sales of bottled water over the period 1996-2003, to the nearest gallon per year.
 
A)16 gallons per year
B) 15 gallons per year
C) 17 gallons per year
D) 18 gallons per year
E) 19 gallons per year

Quizplus · Accepted Answer

The Answer of The rate of U.S. per capita sales of bottled water for the period 1993-2003 could be approximated by $Q ( t ) = 0.05 t ^ { 2 } + 0.4 t + 9$ where t is the time in years since 1990.  
Compute the average annual sales of bottled water over the period 1996-2003, to the nearest gallon per year.
 
A)16 gallons per year
B) 15 gallons per year
C) 17 gallons per year
D) 18 gallons per year
E) 19 gallons per year

The Rate of U Q(t)=0.05t2+0.4t+9Q ( t ) = 0.05 t ^ { 2 } + 0.4 t + 9Q(t)=0.05t2+0.4t+9

The Rate of U $Q ( t ) = 0.05 t ^ { 2 } + 0.4 t + 9$