Pre-Calculus Homework Solutions 232

Pre-Calculus Homework Solutions 232 - 30. 30 ft x 400 ft A...

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Unformatted text preview: 30. 30 ft x 400 ft A B sin F f¬ sin 82° f¬ 21.3¬ H¬ H¬ sin B b sin B 11 10.0¬ 11sin 64° ¬ 15 11sin 64° ¬ 15 sin B sin 75° c¬ 15sin75°¬ 15 sin 75° sin 64° ¬ 16.1¬ sin C c¬ sin 67° 12 ¬ a sin67°¬ a¬ 12 sin 58° sin 67° ¬ 11.1¬ 37. z2¬ z2¬ z2¬ z¬ z¬ 38. y2¬ y2¬ y2¬ y¬ y¬ 39. a2¬ a2¬ a2¬ a¬ a¬ 180 180 75 c sin64° c c sin A a sin 55° a 12sin55° 12 sin 55° sin 67° a¬ 10.7 m B m C¬ 55 m B 67¬ m B¬ sin B sin C b¬ c 12sin58°¬ c¬ c¬ sin 64° 15 mA sin 58° b¬ c sin64°¬ B 41°¬ B mB mC 64 41 m C mC sin C sin A c¬ a Chapter 7 sin B b¬ sin 64° 18.5 ¬ 15sin B mA 34. 18.5sin29°¬ 18.5 sin 29° sin 64° ¬ 11sin64°¬ 1 sin A a¬ sin 29° a¬ 47° sin A a¬ sin 64° 15 ¬ sin c sin29° c 9.9¬ c 36. m A m B 29 64 10.5 sin65° 13 sin65° sin 1 10.513 33. 180 180 90 4.8 sin 90° sin 29° ¬ mC mC mC 10.5sin65° sin H¬ B sin A a sin 29° 4.8 4.8sin90°¬ sin G g sin 65° 13 13sin H¬ sin B sin C c¬ sin 90° c¬ f f sin H h¬ sin H 10.5 ¬ 1 4.8sin B 8.7sin 29° ¬ 4.8 8.7sin 29° ¬ 4.8 61°¬ B mA mB mC 29 61 m C mC f sin48° 16 sin 82° sin 48° ¬ 32. sin sin G g sin 48° 16 16sin82°¬ sin B b sin B 8.7 8.7sin29°¬ Let x represent m CAB. 30 tan x°¬ 400 30 x¬ tan 1 400 x¬ 4.3 The angle of elevation of the track is about 4.3°. 31. sin A a¬ sin 29° 4.8 ¬ 35. C 180 180 58 180 180 87 sin B b sin 64° 18.5 a sin64° a a sin C c sin 87° c 18.5sin87° 18.5 sin 87° sin 64° 20.6 x2 y2 2xy cos Z 7.62 5.42 2(7.6)(5.4)cos51° 86.92 82.08cos51° 86.92 82.08cos 51° 5.9 x2 z2 2xz cos Y 212 162 2(21)(16)cos73° 697 672cos73° 697 672cos 73° 22.4 b2 c2 2bc cos A 132 182 2(13)(18)cos64° 493 468cos64° 493 468cos 64° 17.0 sin A sin B a¬ b sin 64° 17 ¬ sin B 13 13sin64°¬ sin 67° 12 sin 1 17sin B 13sin 64° ¬ 17 13sin 64° ¬ 17 sin B B 43°¬ B mA mB mC 64 43 m C mC b sin67° b b 234 180 180 73 ...
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This note was uploaded on 12/19/2011 for the course MAC 1140 taught by Professor Dr.zhan during the Fall '10 term at UNF.

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