math The function D(x) models the cumulative numbe

posted by .

Thge function D(x) models the cumulative number of deaths from a disease x years after 1984. Estimate the year when ther were 89,000 deaths. D(x) = 2386x^2 +5147x + 5398. there were approximately 89,000 deaths in the year?

  • math The function D(x) models the cumulative numbe -

    D(x)=2386x^2+5147x+5398=89000

    2386x^2+5147x+5398-89000=0

    2386x^2+5147x-83602=0

    If you don't know solve that equation in google type:
    quadratic equation online

    When you see list of results click on:
    Free Online Quadratic Equation Solver:Solve by Quadratic Formula

    When page be open in rectangle type:
    2386x^2+5147x-83602=0
    and click option solve it.
    You will see solution step by step.



    4.94 approx = 5

    Approximately the year=1984+5=1989

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. algebra

    The equation y= - 1777x + 27,153 can be used to predict the number y of gun deaths in the United States x years after 2000 that is, x=0 corresponds to 2000, x =3 corresponds to 2003, x = 4, and so on. Predict the number of gun deaths …
  2. math algebra

    The equation y=-1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun …
  3. math (word problem) last one

    The equation y=-1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun …
  4. math

    The equation y = -1777x+27153 can be used to predict the number y of gun deaths in the United States x years after 20000, that is, x=0 corresponds to 2000, x=3 corresponds to 2003, x=5 corrresponds to 2005 and so on. Predict the number …
  5. Math

    Can someone please help me with this Algebra problem. The equation y= -1777x + 27,153 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is, x=0 corresponds to 2000, x=2 corresponds to 2002, x-6 …
  6. algebra

    THE FUNCTION D(X) MODELS THE CUMULATIVE NUMBER OF DEATHS FROM A DISEASE X YEARS AFTER 1984. ESTIMATE THE YEAR WHEN THERE WERE 90,000 DEATHS D(x)=2010X^2+5400X+5774
  7. Math

    The bar graph shows the cumulative number of death form AIDS in the US, from 1990 through each of the years 1996-2002. The data in the graph can be modeled by the following polynomials, in which f(x) and g(x) represent the cumulative …
  8. macroeconomic

    Secondhand smoke globally kills more than 600,000 people each year, accounting for 1 percent of all deaths worldwide, according to a new study. . . . Researchers estimated that annually secondhand smoke causes about 379,000 deaths …
  9. Urgent math

    please help The fox population in a certain region has a relative growth rate of 7% per year. It is estimated that the population in 2005 was 19,000. (a) Find a function n(t) = n0ert that models the population t years after 2005. n(t) …
  10. Economics

    Secondhand smoke globally kills more than 600,000 people each year, accounting for 1 percent of all deaths worldwide. Researchers estimate that annually secondhand smoke causes about 379,000 deaths from heart disease, 165,000 deaths …

More Similar Questions