document.write( "Question 1092504: The net revenue for a certain car company (in billions of dollars) between the three years 2007 and 2012 is approx. by R(x)=-0.657x^3+10.5x^2-153.9x+416.8, where x=7 corresponds to the year 2007.
\n" ); document.write( "What is the revenue in 2009? \r
\n" ); document.write( "\n" ); document.write( "I tried this way: 2009-2007=2 than add 7+2=9 and insert 9 instead of X, but that's not correct, so I don't know how to do it.
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Algebra.Com's Answer #707124 by greenestamps(13200)\"\" \"About 
You can put this solution on YOUR website!

If x=7 corresponds to year 2007, then x=9 corresponds to year 2009. So you are doing the right thing.

\n" ); document.write( "Do you know what the answer is supposed to be, and you are getting a different answer? Try performing the calculation again; maybe you made an error in your calculations the first time.

\n" ); document.write( "Or maybe your answer is right, and the answer you think you are supposed to get is wrong....

\n" ); document.write( "By the way, are you sure you have the revenue function right? The function you show has the company losing hundreds of billions of dollars every year.

\n" ); document.write( "(Maybe the \"company\" is the US treasury...? LOL)
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