11. (1/4 points) DETAILS PREVIOUS ANSWERS POOLELINALG4 1.2.030. 1/2 Submissions Used Let A = (-5,9), B = (1, 0), and C =

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11 1 4 Points Details Previous Answers Poolelinalg4 1 2 030 1 2 Submissions Used Let A 5 9 B 1 0 And C 1 (43.14 KiB) Viewed 23 times

11. (1/4 points) DETAILS PREVIOUS ANSWERS POOLELINALG4 1.2.030. 1/2 Submissions Used Let A = (-5,9), B = (1, 0), and C = (4,2). Prove that LABC is a right-angled triangle. Let u = AB, v = BC, and w = AC. We must show that uvu.wor vw is zero in order to show that one of these pairs is orthogonal. U.VE Uw = V.W= Based on your previous answers, it can be concluded that ABC is a right-angled triangle because of which of the following? OBCI AC AB 1 AC AB I BC 12. [-/1 Points] DETAILS POOLELINALG4 1.2.045.0/2 Submissions Used Find the projection of v onto u. (Round your answer to three decimal places.) u = - 3.01 -0.33 2.52 V 2 1.330 4.063 -1.672 proj, (v) =