Need both 7 and 8 answered

7. [-/1 Points] DETAILS LARPCALCLIM5 1.10.515.XP. MY NOTES ASK YOUR TE Use the fact that the diameter of the largest particle that can be moved by a stream varies approximately directly as the square of the velocity of the stream. A stream of velocity v can move particles of diameter d or less. By what factor does d increase when the velocity is quadrupled? Need Help? Read It Watch It 8. [-/1 Points] DETAILS LARPCALCLIM5 1.10.506.XP. MY NOTES ASK YOUR TEA Find a mathematical model that represents the statement. (Determine the constant of proportionality.) v varies jointly as p and q and inversely as the square of s. (v = 3.5 when p = 3.9, q = 5.6 and s = 1.2) Need Help? Read It Watch It 9. [-/1 Points] DETAILS LARPCALCLIM5 1.10.510.XP. MY NOTES ASK YOUR TEAC