4x+2=-2
4x=-2-2
4x=-4
x=-4/4
x=-1
Answer: 
Step-by-step explanation:
If the volume of a sphere is

Where
is the radius
The volume of a hemisphere is half the volume of the total sphere:


Solving this equation:

Finally:

Fill in the values and calculate:
1/4 * 6 + 3*7 = 6/4 + 21 = 22 1/2
The answer is c! As CBA & ZXY is not only a full triangle, but its written incorrectly.
ABC → CBA
XYZ → ZYX (not ZXY)
Answer:
12 for each rope
Step-by-step explanation:
half of 24 is 12