11. [-74 Points] DETAILS POOLELINALG4 1.2.030. 0/2 Submissions Used MY NOTE Let A = (-1, 3), B = (1, 0), and C = (10,6).

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11 74 Points Details Poolelinalg4 1 2 030 0 2 Submissions Used My Note Let A 1 3 B 1 0 And C 10 6 1 (53.7 KiB) Viewed 29 times

11. [-74 Points] DETAILS POOLELINALG4 1.2.030. 0/2 Submissions Used MY NOTE Let A = (-1, 3), B = (1, 0), and C = (10,6). Prove that AABC is a right-angled triangle. Let u = AB, v = BC, and w= AC. We must show that u. V, uw, or v w is zero in order to show that one of these pairs is orthogonal. U. V = u. W = V.W= Based on your previous answers, it can be concluded that ABC is a right-angled triangle because of which of the following? OAB 1 AC AB 1 BC BC I AC 12. [-/1 Points) DETAILS POOLELINALG4 1.2.045.0/2 Submissions Used MY NOTE Find the projection of v onto u. (Round your answer to three decimal places.) 3.01 u = -0.33 2.52 - 1 VE 1.330 4.063 -1.672 proj, (v) = =