Pre-Calculus Homework Solutions 223

# Pre-Calculus Homework Solutions 223 - 10 Let n d and q be...

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10. Let n , d , and q be the measures of the sides opposite / N , / D , and / Q ,respectively. n 5 } 1 2 } (10) 1 } 1 2 } (24) or 17 mm d 5 } 1 2 } (24) 1 } 1 2 } (22) or 23 mm q 5 } 1 2 } (10) 1 } 1 2 } (22) or 16 mm n 2 5 ¬ d 2 1 q 2 2 2 dq cos N 17 2 5 ¬ 23 2 1 16 2 2 2(23)(16)cos N 289 5 ¬ 785 2 736cos N 2 496 5 ¬ 2 736cos N } 2 2 4 7 9 3 6 6 } 5 ¬ cos N N 5 ¬ cos 2 1 1 } 2 2 4 7 9 3 6 6 } 2 N < ¬ 47.6° q 2 5 ¬ n 2 1 d 2 2 2 nd cos Q 16 2 5 ¬ 17 2 1 23 2 2 2(17)(23)cos Q 256 5 ¬ 818 2 782 cos Q 2 562 5 ¬ 2 782 cos Q } 2 2 5 7 6 8 2 2 } 5 ¬ cos Q Q 5 ¬ cos 2 1 1 } 2 2 5 7 6 8 2 2 } 2 Q < ¬ 44.1° m / Q 1 m / D 1 m / N 5 ¬ 180 44.1 1 m / D 1 47.6 < ¬ 180 m / D < ¬ 88.3 Pages 388–390 Practice and Apply 11. u 2 5 ¬ t 2 1 v 2 2 2 tv cos U u 2 5 ¬ 9.1 2 1 8.3 2 2 2(9.1)(8.3)cos32 ° u 2 5 ¬ 151.7 2 151.06 cos32 ° u 5 ¬ Ï 151.7 w 2 151 w .06 co w s32 ° w u < ¬ 4.9 12. v 2 5 ¬ t 2 1 u 2 2 2 tu cos V v 2 5 ¬ 11 2 1 17 2 2 2(11)(17)cos78 ° v 2 5 ¬ 410 2 374 cos78
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