Answer:
i need points sorry
Step-by-step explanation:
Answer:
2400 rabbits
Step-by-step explanation:
1st year: 150
2nd year: 300 (150+150)
3rd year: 600 (300+300)
4th year: 1200 (600+600)
5th year: 2400 (1200+1200)
(this is possibly wrong actually)
Answer:
the answer is 84.56
Step-by-step explanation:
A = lw
A = 18 · 4
A = 72
The area of the rectangle is 72 cm2.
Circle
A = πr2
A = 3.14(2)2
A = 3.14(4)
A = 12.56
The area of the circle is 12.56 cm2.
Find the area of the bookmark.
A = 72 + 12.56
A = 84.56
Answer:
F
Step-by-step explanation:
F doesn't represent a function because -1 and 2 have multiple outputs. A function is when an input only has one output. F is not a function.
Answer:

Step-by-step explanation:
For this case the solution flows at a rate of 2L/min and leaves at 1L/min. So then we can conclude the volume is given by 
Since the initial volume is 10 L and the volume increase at a rate of 1L/min.
For this case we can define A as the concentration for the salt in the container. And for this case we can set up the following differential equation:

Because at the begin we have a concentration of 8 gr/L and would be decreasing at a rate of 
So then we can reorder the differential equation like this:

We find the solution using the integration factor:

And then the solution would be given by:

And if we simplify this we got:

And after do the integral we got:

And using the initial condition t=0 A= 20 we have this:


So then we have this function for the solution of A:

And now replacinf t= 40 we got:
