A cylindrical water tank near the town library is 20 meters high and has a circumference of 39 meters. What is the approximate v
1 answer:
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Answer:
(A)29 cubic inch
Step-by-step explanation:
Diameter of the Cone =4 Inches
Height of the Cone =7 Inches
Volume of a Cone
First, we determine the radius, r.
Radius=Diameter/2=4/2=2 Inches
Therefore:
Volume of one paper cone
=29.32 cubic inch
=29 cubic inch (to the nearest cubic inch.)
If 
is the amount of salt in the tank at time 
, then the rate at which the amount of salt in the tank changes is given by
Let's drop the units for now. We have
![\dfrac{\mathrm d}{\mathrm dt}\left[e^{t/100}A(t)\right]=24e^{t/100}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Cmathrm%20d%7D%7B%5Cmathrm%20dt%7D%5Cleft%5Be%5E%7Bt%2F100%7DA%28t%29%5Cright%5D%3D24e%5E%7Bt%2F100%7D)
We're given that the water is pure at the start, so
, giving
So the amount of salt in the tank (in lbs) at time is
Let's drop the units for now. We have
We're given that the water is pure at the start, so
So the amount of salt in the tank (in lbs) at time