Answer:
x = ± 
Step-by-step explanation:
Given
5 - 2x² = - 15 ( subtract 5 from both sides )
- 2x² = - 20 ( divide both sides by - 2 )
x² = 10 ( take the square root of both sides )
x = ± 
If you meant that 1 ball can complete a full rotation in 120 mins then to have a 180 min rotation you need 1.5 balls.
Answer:
I would say about 42% or so luvs hope I helped
Answer:
72 + 26 = 98
Step-by-step explanation: