Question

The number of U.S. travelers to other countries during the period from 1990 through 2009 can be modeled by the polynomial function

Upper P left parenthesis x right parenthesis equals negative 0.00530 x cubed plus 0.1014 x squared plus 1.043 x plus 45.43P(x)=−0.00530x3+0.1014x2+1.043x+45.43

where

xequals=0

represents​ 1990,

xequals=1

represents​ 1991, and so on and​ P(x) is in millions. Use this function to approximate the number of U.S. travelers to other countries in each given year.

​(a) 1990 ​(b) 2000 ​(c) 2009

​(a) In​ 1990, the number of U.S. travelers to other countries was approximately

nothing

million.

​(Simplify your answer. Type an integer or decimal rounded to the nearest tenth as​ needed.)

​(b) In​ 2000, the number of U.S. travelers to other countries was approximately

nothing

million.

​(Simplify your answer. Type an integer or decimal rounded to the nearest tenth as​ needed.)

​(c) In​ 2009, the number of U.S. travelers to other countries was approximately

nothing

million.

​(Simplify your answer. Type an integer or decimal rounded to the nearest tenth as​ needed.)

Answer 1