Help! How would I answer the following vectors questions?

Question 5 (1 point) Listen 1ON Two vectors u and of are equal if and only if: Question 14 (1 point) Listen OTIE The vector [5, m, -2] is perpendicular to the vector [2, 3, -7]. What is the value of m? Out al 8 Ould and w . = Question 2 (1 point) Od -8 Listen Which of the following is false? O d) - 4 Ouxv- (7 x ) Question 15 (1 point) Listen 07 xy=0 Question 15 (1 point) Question 3 (1 point) 10 Listen ( # - ) x (1 + ) is equal to: If i . ( x ud) or v . (w x w ) or w . (1 x 7 ) equal to zero, then the vectors u , v , and uf are coplanar. O2 ( 1 x # ) False O27 True Question 16 (1 point) 1 Listen