The radius of a sphere is increasing at a rate of 3 mm/s. How fast is the volume increasing (in mm /s) when the diameter is 40 mm? (Round your answer to two decimal places.) mm /s Need Help? Read It [-/2 Points] DETAILS SCALCET9 3.9.012. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A particle moves along a hyperbola xy = 12. As it reaches the point (3, 4), the y-coordinate is decreasing at a rate of 4 cm/s. How fast is the x-coordinate of the point changing at that instant? cm/s