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17 November, 21:15

The equation P = 0.0089t2 + 1.1149t + 78.4491 models the

United States population, P, in millions since 1900. If t represents the

number of years after 1900, then what is the estimated population

in 2025 to the nearest tenth of a million?

(1) 217.8 (3) 343.9

(2) 219.0 (4) 356.9

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  1. 17 November, 23:21
    0
    (4) 356.9

    There are 125 years from after 1900 to 2025

    P = (0.0089x125x125) + (1.1149x125) + 78.4491

    =139.0625 + 139.3625+78.4491

    =356.87

    =356.9
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