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PreCal 20S October 30

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Answers to the Pre­Test 1.  a) 1440 b) 870, 920 c) 570 2. h = 384m 3. A = 29.80, B = 94.90, C = 55.30 4.  a) BC = 3.5, CA = 4.0 b) CD = 6.0, BC/AC = 7/4 = 1.75. c) The ratio DC/BD is sin 600 (or cos 300, which is the same thing).      The equivalent ratio in ABC is BC/AC.

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PreCal 20S October 30

  • 1. Answers to the Pre­Test 1.  a) 1440 b) 870, 920 c) 570 2. h = 384m 3. A = 29.80, B = 94.90, C = 55.30 4.  a) BC = 3.5, CA = 4.0 b) CD = 6.0, BC/AC = 7/4 = 1.75. c) The ratio DC/BD is sin 600 (or cos 300, which is the same thing).      The equivalent ratio in ABC is BC/AC.