The polynomial 0.0031x^3+0.0054x^2+1.68 gives the approximate total earnings of a company, in millions of dollars, where x represents the number of years since 1996. This model is valid for the years from 1996 to 2000. Determine the earnings for 2000. Round your answer to two decimals, if necessary.

Question

The polynomial 0.0031x^3+0.0054x^2+1.68 gives the approximate total earnings of a company, in millions of dollars, where x represents the number of years since 1996. This model is valid for the years from 1996 to 2000. Determine the earnings for 2000.  Round your answer to two decimals, if necessary.

owlfred · Answer

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anonymous · Answer

2000 is 4 years after 1996 so replace x by 4.  i got
1.9648

anonymous · Answer

it has four plausible answers. 2.37 million or 2.53 or 2.7 or 3.13

anonymous · Answer

really?  let me replace x by 4 again

anonymous · Answer

sorry i got the same answer again.  are you sure these annoying decimal are correct?

anonymous · Answer

oh. im sorry. its .0031x^3+.0054x^2+.185x+1.68

anonymous · Answer

i got 2.7

anonymous · Answer

my bad, did mean to leave part out

anonymous · Answer

ok now it is 2.7

anonymous · Answer

thx