Answer:
Step-by-step explanation: I'm not sue if the x's are squared so i didn't squared them but i got : 23x³-6x²
+13x-3
A and c.. equivalent is not an equation i dont think
Answer:
Step-by-step explanation:
Let P be the population of the community
So the population of a community increase at a rate proportional to the number of people present at a time
That is
![\frac{dp}{dt} \propto p\\\\\frac{dp}{dt} =kp\\\\ [k \texttt {is constant}]\\\\\frac{dp}{dt} -kp =0](https://tex.z-dn.net/?f=%5Cfrac%7Bdp%7D%7Bdt%7D%20%5Cpropto%20p%5C%5C%5C%5C%5Cfrac%7Bdp%7D%7Bdt%7D%20%3Dkp%5C%5C%5C%5C%20%5Bk%20%5Ctexttt%20%7Bis%20constant%7D%5D%5C%5C%5C%5C%5Cfrac%7Bdp%7D%7Bdt%7D%20-kp%20%3D0)
Solve this equation we get

where p is the present population
p₀ is the initial population
If the initial population as doubled in 5 years
that is time t = 5 years
We get

Apply In on both side to get

Substitute
in
to get

Given that population of a community is 9000 at 3 years
substitute t = 3 in 

<h3>Therefore, the initial population is 5937.8</h3>
Answer:

Step-by-step explanation:

Start by distributing the
into all of the terms in between the second parentheses.

Next, distribute the
into all of the terms in between the second parentheses.

For the sake of simpler interpretation, I separated the two above, but they are together:

Since the terms are already in descending order, we do not need to rearrange them.