Solve.
-The population $\mathrm { P }$, in thousands, of Pine Grove is given by $\mathrm { P } ( \mathrm { t } ) = \frac { 600 \mathrm { t } } { 2 \mathrm { t } ^ { 2 } + 9 }$, where $t$ is the time, in months. Find the interval on which the population was 40 thousand or greater.
A) $[ 0.526,5.474 ]$
B) $( - \infty , \infty )$
C) $[ 0.658,6.842 ]$
D) $[ 5.474 , \infty )$

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The Answer of Solve.
-The population $\mathrm { P }$, in thousands, of Pine Grove is given by $\mathrm { P } ( \mathrm { t } ) = \frac { 600 \mathrm { t } } { 2 \mathrm { t } ^ { 2 } + 9 }$, where $t$ is the time, in months. Find the interval on which the population was 40 thousand or greater.
A) $[ 0.526,5.474 ]$
B) $( - \infty , \infty )$
C) $[ 0.658,6.842 ]$
D) $[ 5.474 , \infty )$

Solve -The Population P\mathrm { P }P , in Thousands, of Pine Grove Is Given By

Solve
-The Population $\mathrm { P }$ , in Thousands, of Pine Grove Is Given By