please answer all questions below, no explanation is needed, will rate helpful

Question 10 (1 point) Listen The vector projection of u = [3, -4, -2] on the x-axis is: O3 O 31 3 V29 O 3 V29 Question 11 (1 point) Listen axb = axc What can you say about b and c'? O a) The angles they make with a must be equal O b) They must be equal O c) Their magnitudes must be equal O d) Their directions and magnitudes could be different Question 12 (1 point) Listen When the angle between vectors u and v is between 0 and 90-: You can't tell Ou . TO 7 . V=0