1.
a)cylinder: V = π r² h
b)pyramid: <span>1/3 · [area of base] · h </span>
c)cone: (1/3)πr²h
2.
The changes in the dimensions of a cube changes its volume by 8 This essentially means that the original side length and volume is 1 cubic unit. However, when you double the side then the volume will finally be 8 cubic units. Therefore, the volume multiplies by eight.
3.
a)cylinder - Ellipse
b)cone - Circle
c)sphere - Great Circle
<span>
d)square pyramid - Triangle</span>
We have been given volume of the cylinder which is 536.94 cubic inches. Now question says to find the radius of the cylinder.
Then we need to use formula of volume of cylinder which is given by :

We see that there are three unknown values in the formula: {volume, radius-r, height-h}
So to find any one of them we must know other two values.
Volume is given but height is missing. So just for explanation i'm going to use height of the cylinder h= 19 inches
Now plug the value of volume and height in above formula





take square root of both sides
3=r
Hence radius of the cylinder is 3 inches.
Where's the full question
Answer:
3
Step-by-step explanation:
add 8 to both sides then x=3
Step-by-step explanation:
x - 7 < -20
x < -20 + 7
x < -13
X = (-12, -11, -10,...)