Pre-Calculus Homework Solutions 3

Pre-Calculus Homework Solutions 3 - 30. 34. 35. 36. 37. 38....

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30. RT ¬ 5 RS 1 ST 25 ¬ 5 2 x 1 3 x 25 ¬ 5 5 x } 2 5 5 } ¬ 5 } 5 5 x } 5 ¬ 5 x ST ¬ 5 3 x ST ¬ 5 3(5) ST ¬ 5 15 31. RT ¬ 5 RS 1 ST 5 x 1 10 ¬ 5 16 1 2 x 5 x 1 10 2 10 ¬ 5 16 1 2 x 2 10 5 x ¬ 5 6 1 2 x 5 x 2 2 x ¬ 5 6 1 2 x 2 2 x 3 x ¬ 5 6 } 3 3 x } 5 } 6 3 } x ¬ 5 2 ST ¬ 5 2 x ST ¬ 5 2(2) ST ¬ 5 4 32. RT ¬ 5 RS 1 ST 21 ¬ 5 3 y 1 1 1 2 y 21 ¬ 5 5 y 1 1 21 2 1 ¬ 5 5 y 1 1 2 1 20 ¬ 5 5 y } 2 5 0 } ¬ 5 } 5 5 y } 4 ¬ 5 y ST ¬ 5 2 y ST ¬ 5 2(4) ST ¬ 5 8 33. RT ¬ 5 RS 1 ST 5 y ¬ 5 4 y 2 1 1 2 y 2 1 5 y ¬ 5 6 y 2 2 5 y 1 2 ¬ 5 6 y 2 2 1 2 5 y 1 2 ¬ 5 6 y 5 y 1 2 2 5 y ¬ 5 6 y 2 5 y 2 ¬ 5 y ST ¬ 5 2 y 2 1 ST ¬ 5 2(2) 2 1 ST ¬ 5 3 34. yes; AB 5 CD 5 3 cm 35. no; EF 5 6 ft and FG 5 8 ft 36. no; NP 5 1.75 in. and LM 5 0.75 in. 37. yes; WX 5 XY 5 6 m 38. not from the information given 39. yes; TR ¬ 5 3( a 1 b ) 1 3 c 5 3 a 1 3 b 1 3 c SU ¬ 5 3 a 1 3( b 1 c ) 5 3 a 1 3 b 1 3 c 40. The width of a music CD is 12 centimeters. 41. C w F w > D w G w , A w B w > H w I w , C w E w > E w D w > E w F w > E w G w 42. 144 cm 3 ; 343 mL could be actually as much as 343.5 mL and 200 mL as little as 199.5 mL;
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