solve it step by step with proper solution

VA Topic 4 - HW 4: (Chain Rule) - MA X + X -> C A webassign.net/web/Student/Assignment-Responses/last?dep=24613323 For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer. Assignment Scoring Your last submission is used for your score. 1. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER Use the Chain Rule to find dz/dt. z = 9x2 -2y2 + xy, x = sint, y = 3et dz dt 2. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER Use the Chain Rule to find dz/dt. z = cos(-3x +9y), x = -6to, y = 9/t dz Type here to search 9 12:16 PM 9/15/2020VA Topic 4 - HW 4: (Chain Rule) - MA X + X -> C A webassign.net/web/Student/Assignment-Responses/last?dep=24613323 e 5. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER Use the Chain Rule to find Oz/ds and Oz/dt. z = 9sin @ cos o, 0 = sto, 0 = 52t ze as oz at 6. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER Use the Chain Rule to find dw/dt. w = xev/z, x = tz, y = -1 -t, z =2 -9t dw _ dt 7. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER Type here to search O 9 12:16 PM 9/15/2020VA Topic 4 - HW 4: (Chain Rule) - MA X + X > C A webassign.net/web/Student/Assignment-Responses/last?dep=24613323 9. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER Find Oz/Ox and Oz/dy. x2 + 4y2 + 322 = 1 dz ax Oz av 10. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER Find Oz/Ox and Oz/dy. e= = 8xyz Oz ax av Submit Answer Submit Assignment Save Assignment Progress Type here to search O e 9 12:16 PM 9/15/2020