476 PRACTICAL MATHEMATICS 



(14) (15) 47T (16) 0-8812 (17) 10-328 (18) 1-3168 



B 



(19) 26-84 (20) 0-2028 (21) 0-1419 radians (22) 3-957 



(23) a = 1-32, b = 0-5, 7-909 (24) a = 3-106, b = 0-1509, 31-22 

 (25) 4-264 (26) a = 10-19, b = 16-43, c = 1-553, 30-79 



32 S2 8 



(27) (3, 8), (- 2, 3), 20-83 (28) _, - (29) - (30) 12-07 



(31) 0-7541 (32) 22-5, 4-5 (33) 17-07 (34) 5-94, 40-65 



(35) 12566-4 (36) 2964 (37) 3141-6 



(38) a = 2-451, n = 1-606 ; for area A, V ox = 453-1 and V OY = 220-1 ; 



for area B, V ox = 1457 and V OY = 176-8 



(39) a = 1-32, b = 0-5, 118 (40) a = 3-036, b = 0-1423,1617 



(41) 2L (42) 14-14, 7-069 (43) 184-4 (44) 94-25, 157-1 



(45) 520-4, 98-97 



XV (pages 220, 221) 



O/y 



(1) x = 2-15", y = 2-28" (3) ~- (6) 3-5355" (7) 8-660" 



07T 



(8) x = 0-869", y = 2-618" (9) 1-074" (10) 1-009" 



(11) x - 4-174", y = 3-423" (12) 2-411" (13) 2-401" 



(14) x = 3-438", y --= 3-438" (15) x = 2-25, y = 8-1 

 (16) x = 0-9, y = 5-58 (17) x = 4-5, y = 0-9 



(18) x = 3-6, y = 3-6 (19) = 3-056, y = 4-351 



(20) x = 2-122, y = 1-697 



(21) a = 1-515, n = 1-826, = 3-871, y = 9-264 



(22) 2-77 (23) x = 2, y = 11-4 



XVI (pages 244, 245, 246) 



7i3 7,3 / 



(1) 12-35 ft. (2) 7-3214 ft. (3) -(Sa + b), ^(a + b + 



(4) 7-639 ft., 12-953 ft. 



(5) I ox = 86-16, I OY ='ll-594, IGX = 36-03, ^y = 6-077 



(6) 5-90, 5-245 (7) 111-71, 15-48, 0-269", 0-722" 

 (8) 111-71, 10-83, 36-05 (9) 165-5, 13-11, 1-111", 3-948" 



(10) I ox = 110-55, I OY = 132-32, I GX = 34-40, ^ = 19-18 



(11) 77-58, 36-91 (12) 2-384", 5-899" 

 (13) 753-2, 498-7, 0-2246", 0-2761" (14) 29-15 



(15) 79-79 ft.-lb. (16) 66-49 ft.-lb. (17) 0-77470 (18) 0-5478a 



(19) 941-9 inch-lb. units (20) 180-8, 63-36, 148-4 



