solve it step by step with proper solution.

VA MATH 227, section 004, Fall 2020 x VA Exam 1 Review - MATH 227, secti X + X C A webassign.net/web/Student/Assignment-Responses/last?dep=24613317 it: Apps @ YouTube @ Home Netflix @ if you submit or change the answer. Assignment Scoring Your last submission is used for your score. 1. [-/0 Points] DETAILS SESSCALCET2 10.1.012. MY NOTES ASK YOUR TEACHER Find an equation of the sphere that passes through the origin and whose center is (1, 3, 4). 2. [-/0 Points] DETAILS SESSCALCET2 10.1.502.XP. MY NOTES ASK YOUR TEACHER Find an equation of the sphere with center (-5, 1, 6) and radius 9. What is the intersection of this sphere with the yz-plane? X = 0 Activate Windows Go to Settings to activate Windows. Type here to search O Eli 9 11:41 AM 9/2/2020VA MATH 227, section 004, Fall 2020 x VA Exam 1 Review - MATH 227, secti X + X C A webassign.net/web/Student/Assignment-Responses/last?dep=24613317 it: Apps @ YouTube @ Home Netflix @ 5. [-/0 Points] DETAILS SESSCALCET2 10.2.017. MY NOTES ASK YOUR TEACHER Find a unit vector that has the same direction as 8i - j + 4k. 6. [-/0 Points] DETAILS SESSCALCET2 10.2.018. MY NOTES ASK YOUR TEACHER Find a vector that has the same direction as (-4, 6, 2) but has length 6. 7. [-/0 Points] DETAILS SESSCALCET2 10.3.019. MY NOTES ASK YOUR TEACHER Determine whether the given vectors are orthogonal, parallel, or neither. (a) a = (-5, 4, 4), b = (8, -8, 3) Activate Windows O orthogonal Go to Settings to activate Windows. O parallel Type here to search O e 9 9 11:41 AM 9/2/2020