DANVILLE
AREA COMMUNITY COLLEGE
COLLEGE ALGEBRA
MATH 111, Fall 2008
Grades/Solutions: Math
111
ID
P11/2/3/4/5/6/7/8/9/0/1/2/3/4/5/6/ex1/1/2/2/3/4/5/6/7/e2/2/1/2/3/4/5/6/e3/3i/2/3/4/
279 3/4/4/5/4/0/3/4/4/2/3/2/1/2/4/0/ 58/2/
785 5/3/0/3/3/6/4/5/5/5/6/4/4/0/0/4/ 82/0/
840 5/4/6/3/4/4/4/6/4/4/3/3/3/4/4/3/ 74/4/
739 5/6/4/5/4/6/5/6/6/6/5/4/4/6/5/5/ 80/4/
081 5/4/5/4/3/4/5/6/5/4/5/3/5/5/5/4/ 92/4/
047 5/4/5/3/4/6/3/5/0/0/0/2/0/0/3/4/ 55/0/
063 5/4/4/6/3/3/3/4/5/0/0/4/0/4/4/4/ 56/0/
167 6/6/6/6/5/6/6/6/6/6/4/6/6/6/6/6/ 94/5/
374 6/5/6/5/4/5/4/6/4/0/0/2/3/4/4/4/ 70/0/
469 4/4/3/5/0/4/5/6/5/0/5/4/0/4/0/4/ 63/0/
262 5/4/4/6/0/4/4/5/6/0/5/3/0/5/0/0/ 76/3/
H.K 5/5/5/6/3/4/5/5/5/5/5/6/4/4/5/6/ 74/0/
H.J 4/0/4/2/4/0/0/5/6/0/5/5/5/5/0/0/ 56/0/
K.C 0/6/4/4/4/6/4/5/4/3/4/4/4/5/4/4/ 74/0/
A.H
/0/5/0/4/4/0/0/ 73/3/
326 5/3/0/5/4/0/0/5/0/0/0/0/0/5/4/3/ 52/2/
MAX 6/6/6/6/6/6/6/6/6/6/6/6/6/6/6/6/6/6/6/6/
All Solutions to Homework P-1 to P-7:
P-1(page 12): (2)a.false,
(8)f,false, (10){-3.5,-1,0,1,3.14,4.3535...}, (12){-1,0,1}, (14){1},
(18)-3x+12, (28) a2-1,(30)0, (40)1/4, (48)81/256 ,(56)-7/2, (68)3
,(70)-31,
(86)8 ,(94)2x-1,
P-2(page 22): (10)81
,(20)-18a^10b^9, (36)q^2/3p^2 ,(42)4a^2,
(50)4y^6/x^10v,(52)-2c^6s/3d^4t,
(58)0.000000009333 ,(60)1.6587*10^7, (74)1.7*10^14 ,(78)5.83*10^-2,
(84)5.721*10^12, (86)7.03*10^16
P-3(page 35):
(8)1/25,
(22)2xy^2 ,(32)8/b^2, (46)1/5 ,(52)a/sqrt{b^4+1), (56)(x3+y3)^1/3,
(64)2t/y^2, (74)-2a(3a^2),(86)x^2sqrt7x,(98)(2a)^1/9,
(100)278,294,312,330,350,371,393,416,441,467,495Hz, (108)a^2sqrt3/4
P-4(page
44): (6)0-sqrt(5), (24)24, (34)-i, (50)27/4 (58)2/13+16/13 i (70)-3/2+sqrt(2)/2
i
(78)1+i sqrt(6)/2 (82)-1 -i sqrt(15)/3
P-5(page
53): (4)2,1,trinomial
,(10)-112,548, (16)-5x^2y^2-3xy+8x-4y ,(20)-6x^2+2x+9,
(22)-2m^3+6m^2-18m, (32}z^2-7z+12, (42)16+7sqrt6 ,(52)4z^2b-1,
(64){4-sqrt6}/5,
(72)2x-3, (82)x^2-x+1,0, (90)x+2+(-3)/(x-3), (112)-1 ,(114)2x^2+3x-9,
P-6(page
64): (4)3wm(1+5m),-3wm(-1-5m),(16)(3y-5)(2z-1)(30)(3x-4)(5x+2),(32)(3t-v)(3t+v),
(48)(2th+n^3)(4t^2h^2-2thn^3+n^6),(58),(t^3+9)(t^3+6),(66),(a+1)(a-1)(a^2-a+1),
(78)no, (84)(x-2)(x+3)(2x+1)(2x-1),(86)2x+4,
(88)4x^2-26x+42,4x^3-26x^2+42x,
P-7(page
76):
(2){x|x=5},(10)-2/(x-5)(20)2w^2/17y^2,(30)(-a-1)/(2a+4),(34)(5a^2+10ab)/20a^3b,
(40)10x^2y, (46)(2a-7b)/3a^2b^2,(60),(3x^2+4x-27)/x(x^2-9),
(66)(4y-3y^2)/(4x+6y^2),(72)(7x+2)/(-2x-8), (74)(1+2x)/x,(92)3.000007,
Solutions to the review problems:
