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1984-1994 the equation the number of aids cases can be modeled by the equation

C(x)=3034x^2+14,018x+6400

X represents years after 1984 estimate the year when 200,000 aids cases had been diagnosed.

  • college algebra - ,

    X=1990

  • college algebra - ,

    3034x^2+14,018x+6400 = 200000
    3034x^2+14,018x - 193600 = 0
    use the formula, you are just dealing with large numbers, I got
    x = 6.005 or a negative

    so adding 6 to 184 --->1990

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