Answer:
B
Step-by-step explanation: B is the only reasonable answer
Answer:
- r = √(3V/(πh))
- r ≈ 1.78 cm
Step-by-step explanation:
Multiply by the inverse of the coefficient of r², then take the square root.

For V=50, h=15, this is ...

It will take an object dropped from a height of 50 meters √50/0.82 = 8.62 seconds to land on the moon.
9/xy + x^2/y = (9+x^3)/xy