22. [-/1 Points] DETAILS LARPCALC11 4.4.097. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An airplane, flying at an altitude of 4.7 miles, is on a flight path that passes directly over an observer (see figure). Let 0 be the angle of elevation from the observer to the plane. 4.7 mi Not drawn to scale Find the distance d (in miles) from the observer to the plane For each value of 0. (Round your answers to one decimal place.) (a) 0 = 30 mi (b) 0 = 90 mi (c) 0 = 120 mi Need Help? Read It Watch It 23. [-/1 Points] DETAILS LARPCALC11 4.4.506.XP. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The displacement from equilibrium of an oscillating weight suspended by a spring is given by y(t) = 4 cos(3t), where y is the displacement in centimeters and t is the time in seconds. Find the displacement when t = 0, t = , and t = . (Round your answers to two decimal places.) (a) t = 0 cm (b) t = _ 1 4 cm (c t 1 2 cm d Help? Watch