The cone equation gives

which means that the intersection of the cone and sphere occurs at

i.e. along the vertical cylinder of radius 

 when 

.
We can parameterize the spherical cap in spherical coordinates by

where 

 and 

, which follows from the fact that the radius of the sphere is 3 and the height at which the sphere and cone intersect is 

. So the angle between the vertical line through the origin and any line through the origin normal to the sphere along the cone's surface is

Now the surface area of the cap is given by the surface integral,




 
 
        
        
        
Answer: The first one. 2 to the 20th power over 3 to the 8th power
Step-by-step explanation:
 
        
             
        
        
        
Answer:
$2500
Step-by-step explanation:
Given that,
The lost percentage = 9%
Amount she had = $22,750
We need to find Mrs. Fisher's original investment. 
As she had lost 9%, it means she will remain with 91% of her investment. Let the original investment is x.
So,

So, her original investment is equal to $25000.
 
        
             
        
        
        
The answer is 50º
Step-by-step explanation:
It is the correct and only plausable answer.