You can model the population of a certain city between 1955-2000 by the radical function P(x) = 55,000./7-1,945. Using this model, in

Question

You can model the population of a certain city between 1955-2000 by the radical function
P(x) = 55,000./7-1,945. Using this model, in which year was the population of that city 275,000?

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Isabella 2 weeks 2021-11-24T05:14:05+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-24T05:15:42+00:00

    Answer:

    1970

    Step-by-step explanation:

    0
    2021-11-24T05:16:03+00:00

    Complete Question:

    You can model the population of a certain city between 1955-2000 by the radical function

    P(x) = 55,000 sqrt x-1945

    Using this model, in which year was the population of that city 275,000?

    Answer:

    In 1970 population of that city is 275,000

    Solution:

    Given that,

    You can model the population of a certain city between 1955-2000 by the radical function
    :

    P(x) = 55000\sqrt{x - 1945}

    To find: year in which was the population of that city 275,000

    Therefore,

    x = ?

    P(x) = 275000

    Thus we get,

    275000 = 55000\sqrt{x - 1945}\\\\Divide\ both\ sides\ by\ 55000\\\\\frac{275000}{55000} = \sqrt{x-1945}\\\\5 = \sqrt{x - 1945}\\\\Take\ square\ on\ both\ sides\\\\25 = x - 1945\\\\x = 1945 + 25\\\\x = 1970

    Thus, in 1970 population of that city is 275,000

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45:7+7-4:2-5:5*4+35:2 =? ( )