Solve the problem.
-Book sales on the Internet (in billions of dollars) in year x are approximated by f(x) = 1.84 + 2.1 · ln x, where x = 0 corresponds to 2000. How much will be spent on Internet book sales in 2008? Round to the nearest tenth.
A) 8.0 billion
B) 6.2 billion
C) 6.0 billion
D) 3.9 billion

Question

Quizplus · Accepted Answer

In 2008, x = 8. Plug x = 8 into the function: f(8) = 1.84 + 2.1 · ln(8). Calculate ln(8) ≈ 2.079. Then, f(8) ≈ 1.84 + 2.1 * 2.079 ≈ 6.2 billion.

Solve the Problem. -Book Sales on the Internet (In Billions of Dollars) in of Dollars)