Answer:
321
Step-by-step explanation:
because  100+221 equals 321 
Hope this helped.
 
        
             
        
        
        
Answer:
3600
Step-by-step explanation:
multiply all of the choices
10x15x6x4
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
We need the formula for arc length (in radians) to solve this problem. The formula is:

Where
s is the arc length
r is the radius of the circle
 is the intercepted angle
 is the intercepted angle
In this diagram, we can see that   is beign intercepted by the big arc with measure 20 cm. So arc length, s, is 20
  is beign intercepted by the big arc with measure 20 cm. So arc length, s, is 20
Also, if we look, we see that the radius is 5 cm, so r = 5
Now, we substitute into formula and find  :
:

This is given in radians, so  is 4 radians
 is 4 radians
D is the correct answer choice.
 
        
             
        
        
        
For this case we have that by definition, the volume of a rectangular prism is given by:

Where:
 It is the area of the base of the prism
It is the area of the base of the prism
h: It is the height

Where:
w: is the width
l: is the length
According to the data of the statement we have:

Substituting the data we have:

We choose the positive value: 
So the height is
Answer:
