..... HS Harmandeep Si Class Progress Content Assignments Grades FAQs 18. If u = [6,1,8] is orthogonal to v = [6, 4, k], determine the value(s) of k. (2 marks) of 19. Find the derivative of x - xy =14 using implicit differentiation. (2 marks) and Copyright @ 2020 The Ontario Educational Communications Authority. All rights reserved. MCV4U-B TVO ILC MacBook Air 2. 14 DII F6 F7 F9 F10 F11 F8 DO F4 F5 % A & A tA 6 8 Ovectors (affiliate) ..... HS Harmandeep Sing Class Progress Content Assignments Grades FAQs TVO ILC MCV4U-B Practice Test Part D: Application (16 marks) (approximate time: 25 minutes) 20. A farmer has 400 bushels of apples that he can sell at $24 each today. For each week he waits the price decreases by $2 and the number of bushels increases by 100. For each additional week his storage cost is $600. How many weeks should he wait to have a) maximum revenue? (3 marks) d b) maximum profit? (4 marks) MacBook Air 080 DII F11 F4 F5 - - F6 44 F7 F8 F9 F10 LA % V O A 5 OO\fcalculus and Vectors (affiliate) ..... HS Harmandeep Singh ass Progress Content Assignments Grades FAQs 22. A plane is travelling at 540 km/h on a bearing of 45 and a wind of 55 km/h is blowing from a bearing of 270. Find the plane's speed and bearing. (5 marks) Copyright @ 2020 The Ontario Educational Communications Authority. All rights reserved. MCV4U-B TVO ILC MacBook Air 000 DII F9 F11 000 F4 F5 F6 F7 F8 F10 * % to 5 6 8 O(animate) .... HS Harmandeep Singh ss Progress Content Assignments Grades FAQs Copyright @ 2020 The Ontario Educational Communications Authority. All rights reserved. 10 TVO ILC MCV4U-B Practice Test 21. A ladder 25 m long is leaning against a vertical wall. If the bottom of the ladder is pulled horizontally away from the wall at 3 m/s, how fast is the top of the ladder sliding down the wall, when the bottom is 15 m from the wall? (4 marks) MacBook Air 080 DII F7 F8 F9 F10 F11 000 F4 F5 F6 $ % & O OO 5 6