answer all questions. show work for the blank answers, no need for the multiple choices. write question then answer instead of numbering

Question 2 (1 point) Ifa = (1,0,1) andb = (2,3,2) then |2a+b| = A. B. m Question 3 (2 points) A parallelogram is formed by the points M(3, 1 , 4), N(2, 3, 2), P(5, 9, l ), and 0(0, 5, 1). Determine the area of the parallelogram. Round to 2 decimal places and write in the sample format: "10.02 units"2" _~ Question 4 (1 point) : 14, and the angle between W and b | | ' Round answer to two decimal places. A Question 5 (1 point) If two of the direction angles are a = 300 and I8 = 600 then the third direction angle is: Question 8 (1 point) \ .\ .7 4 Which of the following is incorrect considering the unit vectors i , k ? 3 O?-?=1 O?> Please put vector projection in lowest terms - Question 18 (1 point) If a = [5, -4, 3] and b = [-2, 3, k], find k such that a and b are orthogonal. State the EXACT value