Post a New Question

Math

posted by .

Use of the Internet in a country is given by the function f(x)=0.485x^2-1.694x+0.315, where the output is in millions of users. In this formula x=6 corresponds to 1996, x=7 corresponds to 1997, and so on until x=20 corresponds to 2010. Estimate when the number of Internet users in the country reached 13 million.
The number of Internet users in the country reached 13 million during the year?

  • Math -

    F(x) = 0.485x^2 - 1.694x + 0.315 = 13.

    0.485x^2 - 1.694x - 12.685 = 0,
    X = 7.15 Which corresponds to 1997.
    Therefore the number of Internet users reached 13 million in 1997.

    Use Quadratic Formular to solve Eq.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. algebra

    The equation y=-1777x+27153 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 corresponds to 2004, and so on. Predict the number …
  2. Math 116

    Search Results for "The equation y=-1777+27153 can be used to predict the number y gun deaths i the United States x years after 2000, that is x=0 corresponds to 2000 x-3 corresponds to 2003 x=6 corresponds to 2006 and so on predict …
  3. cyber security

    Prior to the discovery of any specific public-key schemes such as RSA, an existence proof was developed whose purpose was to demonstrate that public-key encryption is possible in theory. Consider the following tables, as shown below: …
  4. math

    use the internet in a country is given by the function f(x) = 0.48x^2 - 1.694x +0.315, where the output is in millions of users. In this formula x = 6 corresponds to 1996. x = 7 corresponds to 1997, and so on until x = 20 corresponds …
  5. math

    use the internet in a country is given by the function f(x) = 0.48x^2 - 1.694x +0.315, where the output is in millions of users. In this formula x = 6 corresponds to 1996. x = 7 corresponds to 1997, and so on until x = 20 corresponds …
  6. Math

    if a relation exists between x and y, then we say that x ____ y or that y ___x and we write x---->y a)depends on;corresponds to b)corresponds to; depends on c)depends on;depends on d)corresponds to; corresponds to    …
  7. Math

    if a relation exists between x and y, then we say that x ____ y or that y ___x and we write x---->y a)depends on;corresponds to b)corresponds to; depends on c)depends on;depends on d)corresponds to; corresponds to
  8. stats

    2. A standardized exam was provided to all 3rd graders in Arizona schools. The average score was 75 with a standard deviation of 10. Assuming that the scores were normally distributed, answer the following questions. (a) What z-score …
  9. math

    The relationship between the temperature in degrees Fahrenheit (°F) and the temperature in degrees Celsius (°C) is F=(9/5)C+32 (b) What is the slope of the line?
  10. Algebra

    The cumulative number of AIDS cases C in the United States from 1982 to 1994 can be modeled by C = 3200x2 + 1586, and the cumulative number of AIDS deaths D from 1982 to 1994 can be modeled by D = 1900x2 + 619. In these equations x …

More Similar Questions

Post a New Question