The Formula's for a cylinder is V=

r^2h and the volume of a Cone is V=1/3

r^2h. So you would know that the volume of a cone is 1/3 the volume of a cylinder.
 
        
        
        
i. Let t be the line tangent at point J. We know that a tangent line at a  point on a circle, is perpendicular to the diameter comprising that certain point. So t is perpendicular to JL
let l be the tangent line through L. Then l is perpendicular to JL ii. So t and l are 2 different lines, both perpendicular to line JL.
2 lines perpendicular to a third line, are parallel to each other, so the tangents t and l are parallel to each other.
Remark. Draw a picture to check the 
        
             
        
        
        
Answer:
x=12
Step-by-step explanation:
5x+4+64+52=180
We move all terms to the left:
5x+4+64+52-(180)=0
We add all the numbers together, and all the variables
5x-60=0
We move all terms containing x to the left, all other terms to the right
5x=60
x=60/5
x=12
 
        
             
        
        
        
6÷40.5= $6.75 per hour 
8÷54= $6.75 per hour 
y= 6.75x
        
             
        
        
        
Answer:
M: 74.579° = 74°34'43" = 1.30164
O: 49.421° = 49°25'17" = 0.86256 rad