Question

# The number of U.S. travelers to other countries during the period from 1990 through 2009 can...

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.)

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