The annual sales $a _ { n }$ (in millions of dollars) for a certain company from 2001 to 2006 can be approximated by the model $a _ { n } = 500.7 + 161.52 n,$ $n = 0,1 , K , 5$ where $n$ represents the year, with $n = 0$ corresponding to 2001. Find the total sales from 2001 to 2004. Round to the nearest million.
A)$2972 million
B)$4119 million
C)$1987 million
D)$2229 million
E)$1502 million

Question

Quizplus · Accepted Answer

The total sales from 2001 to 2004 can be calculated by summing the sales for each year from $n = 0$ to $n = 3$. The sales for each year are: $a_0 = 500.7$, $a_1 = 662.22$, $a_2 = 823.74$, $a_3 = 985.26$. Adding these gives approximately $2972 million.

The Annual Sales ana _ { n }an​ (In Millions of Dollars) for a Certain Company from 2001

The Annual Sales $a _ { n }$ (In Millions of Dollars) for a Certain Company from 2001