Question 8(Multiple Choice Worth 5 points) (07.04 MC) Given u = -3i + 5j and v = -24i + 40j, are u and v parallel or orthogonal? Explain The vectors are orthogonal because cos 8 = 1. The vectors are orthogonal because u . v = 0. The vectors are parallel because cos 8 = 1. O The vectors are parallel because u * v = 0. Question 9(Multiple Choice Worth 5 points) (07.03 MC) Vector v has an initial point at (5, 2) and a terminal point at (-15, 10). What is -_v? O (10,4) O (-10,-4) O (-10,4) O (10,-4) Question 10(Multiple Choice Worth 5 points) (07.02 MC) Vector v has an initial point at (8, 8) and a terminal point at (16, 11). Which of the following represents the linear form of v? Ov= -3i - 8j Ov = 3i + 8j Ov= -8i - 3j Ov = 8i + 3jQuestion 11 (Multiple Choice Worth 5 points) (07.06 MC) A vector has a magnitude of 50 and a direction of 30". Another vector has a magnitude of 60 and a direction of 1505. What are the magnitude and direction of the resultant vector? Round the magnitude to the thousandths place and the direction to the nearest degree. O 55.678; 99: O 55.678; 81= O 54.314; 993 O 54.314; 81: Question 12(Multiple Choice Worth 5 points) (07.02 LC) Which of the following represents vector u = -9i + 5j in component form? Ou= (-5,9) Ou= (5,-9) Ou=(-9,5) Ou= (9,-5) Question 13(Multiple Choice Worth 5 points) (07.03 MC) Vectors u = -10i + 3j and v = -3i - 7j. What is u - v? O-7i + 10j O-13i - 4j O 7i - 10j O 13i + 4jQuestion 14 Multip (07.07 MC) An object experiences two velocity vectors in its environment. V1 = -50i + 4j V2 = 5i + 15j What is the true speed and direction of the object? Round the speed to the thousandths place and the direction to the nearest degree. 48.847; 157: O 48.847; 23= O 40.792; 157: 40.792; 23: Question 15(Multiple Choice Worth 5 points) (07.06 MC) Vectors u, v, and w are shown in the graph. llvil = 60 20 Ilwill = 40 130 Ilull = 90 What are the magnitude and direction of u + v + w? Round the magnitude to the thousandths place and the direction to the nearest degree. 57.817; 19= O 57.817; 161: O 92.326; 11= 92.326; 191=