I got -64/3 for this problem.
        
             
        
        
        
3.4^9 is the answer/.............
        
             
        
        
        
Step-by-step explanation:
Cubes have square faces, so the area of the base is b².
The volume of the cube is b³.
The height of each pyramid is half the height of the cube, so h = b/2.  Which means b = 2h.
The cube is made of 6 square pyramids with the same base and height.  Therefore, each pyramid has 1/6 the volume of the cube.  So the volume of each pyramid is b³/6.
 
        
             
        
        
        
AC = x, CD = 2x cause of 30° angle. Use pythagoras then
        
             
        
        
        
Answer:
Multiply the divisor and dividend by 100.
Step-by-step explanation:
The first step is to eliminate decimal points in both divisor and dividend. Since to convert 0.15 to a whole number you multiply by 100 then it means both the divisor and dividend should be multiplied by 100. So that we shall have 4860/15=324