Surface area = 4 pi r^2
where
pi : 3.14 a constant
r : raduis
surface area is the change of volume with respect to raduis
volume = 4/3 pi r^3
dvolume/dr = 4 pi r^2
you can prove the identity with double integration in spherical coordinates or volumes of revolutions and polar coordinates
Answer:
x = 2.4
Step-by-step explanation:
For this equation, you need to use trigonometry. we only need to use one of the two angles given and for this example i'm going to use the 60° angle. as we know the adjacent side and want to know the opposite side, we need to use the trig ratio tan
in this case, we will replace the adjacent side with
the square root of 2.
= 
as the side we know is on the bottom of the ratio, we need to multiply it by the ratio (tan) then the angle (in case you don't know, * means multiply)
round to 1 decimal place
x = 2.4
Hope this was helpful :-)
I'm sorry if this was confusing, trigonometry is very hard to explain.
The answer is <span>a number that can be written as a ratio of two integers.
I hope this helps!</span>
It is .21 or 21 cents for each pound.