The following answer is 10
Answer: The volume of shell is 12.8π mm².
Step-by-step explanation:
Since we have given that
Radius to the inside of the shell = 4 milimeters
Radius to the outside of the shell = 4.2 milimeters
Since r changes from 4 mm to 4.2 mm
so, 
As we know that
Volume of shell is given by
So, the volume of shell is 12.8π mm².
Step-by-step explanation:
because 
. 10 is the square root of 100, which means that 10 multiplied by itself (10×10=
) is equal to 100. So, when you are trying to find the square root of a number, the square root is itself multiplied by itself.
She ate only one more slice than James
Average speed = (total distance traveled)/(total travel time)
= (total distance)/(time of 1st journey<span> + </span>time of 2nd journey<span> + </span>time of 3rd journey)
Let d = the distance between Town A and Town B
<span>So, total distance traveled = </span>3d
Time = distance/speed
time of 1st journey = d/x
time of 2nd journey = d/y
time of 3rd journey = d/z
<span>Total time = </span>d/x<span> + </span>d/y<span> + </span>dz
<span>To simplify, rewrite with common denominator: </span>dyz/xyz<span> + </span>dxz/xyz<span> + </span>dxy/xyz
So, total time = (dyz + dxz + dxy)/xyz
Average speed = (total distance)/(total time)
<span>= </span>3d/[(dyz + dxz + dxy)/xyz]
= (3dxyz)/(dyz + dxz + dxy)
<span>Divide top and bottom by d to get: (3xyz)/(yz + xz + xy)</span>
