Step-by-step explanation:


Answer:
No
Step-by-step explanation:
It is a solution to the first equation, but not the second equation.
Answer:
x ≤ -10
Step-by-step explanation:
distribute -2 into your denominator (5)
Answer:
18/20π
Step-by-step explanation:
81π ÷ 1 = 81π
81π ÷2 = 18/20π
You do this because the radius is half of the diameter and you need to get rid of the hight by dividing it from the volume.