paguilar98 paguilar98

19-07-2016
Mathematics

contestada

the number of taxi accidents is approximated by y=-143.3x^2+1823.3x+6820 and the number of injuries is approximated by y=-416.72x^2+4416.7x+8500.
Let x=0 represents 1990, x=1 represents 1991, and so on.

According to the equation of the number of accidents, if the trend continued, how many accidents occurred in 1999?

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Marie00 Marie00

19-07-2016

Since each year is increased by 1 then the answer is x = 9

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