PreCal Practice for SOS #11

Solve 7 - 6sinx = 3 + 2sinx for 0≤θ≤180 ^{ο}120 180 135 150 √6 - √2 4 √6 + √2 4 Find the exact value of cos15 ^{ο}.√6/4 √2 Find the magnitude of the horizontal and vertical components of a velocity of 23 mph at an angle of 16 ground. horizontal: 191mph, vertical: 6mph horizontal: 6mph, vertical: 22mph horizontal: 22mph, vertical: 10mph horizontal: 22mph, vertical: 6mph A commercial passenger jet is flying with an airspeed of 135 knots on a bearing of N45 at a bearing of S79 determine the velocity and direction of the jet relative to the ground. 120.1 knots, S55 129.2 knots, S35 155.2 knots, N55 155.2 knots, N35 An airplane is traveling due east with a velocity of 563mph. The wind blows at 76mph at an angle of S43 What is the resultant speed and direction of the plane? 617.3mph, S84.8 617.3mph, S5.2 620mph, S9.5 620.3mph, S85.2 How many triangles are there that satisfy the conditions a=13, b=6 and A =61 0 2 not possible 1 Given a triangle with a=14, A=41 ^{ο}, and B=34^{ο}What is the length of c? 21.6 20.6 19.6 22.6 5.3 28.1 14.1 10.6 What is the length of a? Given a triangle with b=7, c=9 and A=36 B 40 ^{ο}9 Solve ∆ABC A 60 ^{ο}(round to the nearest degree or nearest tenth in length) C <A = a = b = ^{ο}B a=19, b=20, C=63 ^{ο}Determine whether ∆ABC should be solved using Law of Sines of Law of Cosines. A C Law of Cosines Law of Sines B Solve...... A 19 (round to nearest degree or nearest tenth in length) 63 ^{ο}20 C <A = <B = c = ο ο B A=90 ^{ο}, b=9, a=18Determine whether ∆ABC should be solved using Law of Sines of Law of Cosines. A C Law of Cosines Law of Sines B A=90 ^{ο}, b=9, a=18Solve ∆ABC..... A C c=15.6, C=60 ^{ο, }B=30^{ο }c=15.6, B=60 ^{ο}, C=30^{ο}c=15.6, B=61 ^{ο} , C=29^{ο} c=15.6, C=61 ^{ο} , B=29^{ο}Find the area of the triangle with a=15ft, b=22ft and C=30 142.9 82.2 165 285.8 sq ft sq ft sq ft sq ft Find the area of the triangle with a=10ft, b=4ft and c=12ft. 15.7 18.7 20.7 19.7 sq ft sq ft sq ft sq ft |

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