MATH 121 - WRITTEN EXERCISES-MODULE 1

2 7 70 0 639 70 175 4473 175 0 0 6223 jimmy

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: T-121-OL-(1 Nov 09 thru 23 Jan 2010) R.5 Written Assignment (Con’t) 2 y 2 2y − 2 2� − y yy y = = 60.) 2 y 2 2y + 2 2+ 2� + y yy y 2( y − 1) (2( y ) + 2( −1)) y 2( y − 1) y = = = 2( y ) + 2(1) 2( y + 1) 2( y + 1) y y y 1 1 � y − 1) = 2( � − 1) (y = 2( y + 1) y +1 y −1 = y +1 70.) What is the distance from the origin of the Nile where the river has an altitude of 7000 ft.? 2− 7 − 7.0 0 = .639 ( 7.0 ) + 1.75 4.473 + 1.75 0 =0 = 6.223 Jimmy Morgan-MAT-121-OL-(1 Nov 09 thru 23 Jan 2010) R.6 Written Assignment -2 3 �8 � 46b. � � = 27 �� 1 1 =32 2/3 8 ( 8) 2/3 (27) ( 3 27) 2 1 1 = 2 4 = (2) (3) 2 9 = 9 4 1 121 ( 121) �� 54. � � = 3/2 1 �00 � ( 100 ) -32 3/2 = ( ( 1 ) 100 ) 121 3 3 = 1 (11)3 (10)3 1 1000 = = 1331 1331 1000 56.) 64/3 62/3 = 64/3+2/3 = 6 6 = 6 3 = 62 = 36 60.) r -8/9 4+ 2 r17/9 = r -8/9+17/9 =r 62. z 3/4 z 5/4 z -2 = 3 z 3/4 z 5/4 +(-2) z 3/4 = 3/4 z = z 3/4−( −3/4) = z 3/2 74. p11/5 ( 3 p 4/5 + 9 p19/5 ) = p11/5 3 p 4/5 + p11/5 9 p19/5 = 3 p11/5+4/5 + 9 p11/5+19/5 = 3 p3 + 9 p 6 82. y -5 − 3 y -3 ; y -5 = y -5 ( y -5 − 3 y -3 ) -5 2 = y ( 1− 3y ) 90. -3p -3/4 − 30 p -7/4 ; -3 p -7/4 = − 3 p -7/4 ( -3 p -3/4 − 30 p -7/4 ) -7/4 = -3 p ( p + 10 ) Jimmy Morgan-MAT-121-OL-(1 Nov 09 thru 23 Jan 2010) R.7 Written Assignment 6. ( 5r + 3t ) 4/7 = 7 ( 5r + 3t ) 4 8. - 4 z 5 = - z 5/4 22. 4 81 = 811/4 = 91/4 =3 66. 3 32 − 5 3 4 + 2 3 108 = ( 3 ) 8 3 4 − 53 4 + 2 ( 3 3 = 2 4 − 5 4 + ( 2 ) ( 3) 3 27 3 4 ( 4) 3 = 23 4 − 53 4 + 63 4 = 33 4 3 78. 8m 2 n3 3 3 2m 2 = 43 32m n = 90. r 3− r = = ( 3 3 16m 4 n3 3 4 3 4 = = 32m4 n3 8 38 4 2 r 3+ r ) ( 3− r ) ( 3+ r ) r ( 3+ r ) 9−r 3 3 4 8 )...
View Full Document

Ask a homework question - tutors are online