Solve the problem.
-Suppose that the population of a certain city during a certain time period can be approximated by:
$$P(x)=-0.1 x^{5}+3.7 x^{4}+4000$$
Where $x$ is time in years since 1960 . Find $P(3)$.
A) 8775
B) 3375
C) 4275
D) 7075

Question

Quizplus · Accepted Answer

To find $P(3)$, substitute $x = 3$ into the equation:  $$P(3) = -0.1(3)^5 + 3.7(3)^4 + 4000$$  $$= -0.1(243) + 3.7(81) + 4000$$  $$= -24.3 + 299.7 + 4000$$  $$= 4275.4$$  Rounding to the nearest whole number gives 4275.

Solve the Problem P(x)=−0.1x5+3.7x4+4000P(x)=-0.1 x^{5}+3.7 x^{4}+4000P(x)=−0.1x5+3.7x4+4000 Where xxx Is Time in Years Since 1960

Solve the Problem $P(x)=-0.1 x^{5}+3.7 x^{4}+4000$ Where $x$ Is Time in Years Since 1960