Question 9 When plotting 3D vectors it has been taught that sketching a box around the vector helps to display it and give it perspective. Not yet answered Select one: Marked out of 1.00 O True P Flag O False question Question 10 Given i = -92 + 4j + 3k . y = 6i - 2j - 7k, and z = -2i + 2j + 4k, Not yet answered find : -a - 4y - 2 Marked out of 1.00 Answer: P Flag question Question 11 Given v with an initial point of (-1, 4, 6) and a terminal point of (3, 3, 8) , find a unit vector in the same direction as v. Not yet answered Please be sure your final answer has all denominators rationalized. Marked out of 1.00 Select one: Flag O a. (4v21, -V21, 2V21) Choose... question -46 O b. (4V/21 V21 2V/21 21 " 21 ' 21 25 2V/21 2016 O c. (_4V/21 V/21 21 ' 21 ' 21 -7i + 23j - 12k 7i + 23j + 12k o d. (3, -3, 3) 92 46 1785 17i - 47j +12k Question 12 fd = -2i - 2j + 5kande = 7i + j - 6k , answer th 0 ns: Not yet 7i - 23j +12k answered Marked out of What is d x e ? (Give your answer in terms of i, j, and k) Choose.. 1.00 Flag What is (d x e) . d ? Choose... question What is (d x e) . e? Choose