The number of persons aged 18-64 receiving disability benefits through Social Security, the Supplemental Security income, or both, from 1990 through 2000 is approximated by the function 
where 
is measured in units of a million and t is measured in years,
with 
corresponding to the beginning of 1990.
?
Compute 
. Round the answers to the nearest thousandth.
?
__________ million
?
__________ million per year
?
__________ million per year in the second power
What will be an ideal response?
?8.101; 0.204; -0.031
Mathematics
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