Chpt89pretest0001 - MW 35 Name: Date: Dre; Score: / 100...

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Unformatted text preview: MW 35 Name: Date: Dre; Score: / 100 Chapter 8 8i 9 Test Directions: Read each question and answer it To The best of your ability. Show all of your work! Partial credi can be given only for correct work relafive to the problem. Please circle your X2+3X+2 (ad Fl) “*4? (x »3‘)(V«?) b. X2—9. X2+X—12 PM?) thdfl b. . —— . chh: r X2+ 3X x2 +9x+20 mu lhpl») "if"; ( .u (x +g‘)(w€5 l ‘5 < a Cancel . x (96(3) ( W 0’3) Answer. 3 4 d. y+4 y—l L W12; \ _ > . . from? K305 1,4 ' “G l 1_,,\ “*1 + (341% (541514) (LWW _ ‘j Answemw) “1.4!... '7 DA]! 4 J C muk'hpij ccxch’ienfi by fine LILD 3. (5 st each) Solve each of The ra’rional equations. 1) S’rcn‘e The domain of each problem. 2) Stone your:__onsw§)r in a solution set. 3m»? _1_ 1413:“ 1 guru b y _ a + 1 ' X 3x X—Z ' y 2‘y2_4 y—Z »M4” -nm”‘ v.» ‘ 2) > t E")? “‘— -\ Exam ~4x+5 "BX 1 , j — 2 -:_ ‘ .- +2 L ~53 +2 'fii—Z‘LBX 5.; j 3 TH (J yj: 1=4x ‘j "3.5"O;O , Domain' Solu’rion: X : V?” Z V1} (5 st each) Simplify each radical expression: a. ~fi2x7y1° 4. .3} Solufion: AX : yz Domain: “X 8 1+ '2. ’Zg b. x3154x9y10 éfiifi$fi Answer: Answer: c. «4/81X12y16224 d. \[1—2— + R #34x”3“zw v4«2+4253 K;E :u3+5E '3XHZ A 75? 8 Answer: Answer: 7 e. {g f. VXZ—8X+16 ‘I’A 4: Au. 7 V(X—%XX—%3 efl” _33 _ yg‘ P______s 332 _Y5‘ ’ 33:5 (X’L-UL 1 (x’%) D”: ‘7 .IC Answe : Answer: 5. (5 p‘rs ach ' ' form The indicated operafion and simplify . - 7 2 a. (7 + 5X2 — 35) b. M 4X3yezs l’ ELI—+1le . U; i ‘ ., X Answe : Answer: ———-——-——.X > \ l {9?} (A13) “31—y23 6. (4 pfs) Solve for A: D = 7. (4 st)Simplify The complex frac’rion: 5—— D A +833 1 AA: 9‘3 “BX—513 D +DB=AQ :gi‘lifi A’HC:"DB adj—9L x05-” ?( ~a3“-DB , r : 3LP{4> Answe : l I ‘3‘? B Answer: ”‘ X D—C C*D x 7. (4 poi ’rs Graph lhe following funcfions. State The vertical and horizontal asympToTe. Graph The ve fical asymptote f( )=_?__ f(X)=\/; x—3 Ve fical Asymp'lo‘le: 13L“: 3 <3J1—1—1)(2“W3 (2+x/fi)( Z“W\ (pm —e(flT)l—2+\RT V4—~Z2K+'74m {WY “Ream-mm : ~35+7m 4—H :7 =\5-JTT 8. (5 pts ach) Rationalize the denominator: Answe : 9. (5 pts ach) Express in terms of i and simplify: \l—5O 735» («1 ’1 {7- Answe b LN ‘2' 13. (5 pts ach) Perform the indicated operation and write your answer in the form a+bi: 3 ._ _ . _ . . (7—20 (3~44 a. (4 3/) (2 12/) ” b.(2 5/)(2+5I) c.3+4i)(3w4:\ ’1‘H1L ‘ ’6‘.—i0 , “"1 n w ‘ 4 4+1, L y/{i-Zby g “21% _LM +31% ‘ q »\ZL+\'Z.‘\ Hm" \ 2Q | , a - \g — 234w. Q5 _____.______ Answer:________________ Answer; 14. (5 pts ach) Solve each radical equation: c_|—1):2(8)vL V4X+17 ‘CH _LH 4Xt—\7 : Kai-Loer \ #4 8 ‘/ {:2 7 Answe : Answer: —; 2r} Du; (LJC - ’1?) Choose 2 of he following word problems: 10. (5 poi ts)The weight of an object on Mars is directly proportional to the weight of an object on Earth. A person weighing 95 lbs on earth weighs 38le on Mars. How much would a 150lb perso on earth weigh on Mars? " Let -‘X = WeiflhmnMars 5 3 lSO X. QBA: 11. (5 poi ts A Pentium I c ip can process a megabyte of data in 15 seconds. A Celeron chip can do it i 20 seconds. How long will it take both chips, working together, to process (1 megabyte m L" 0/7 : _ :75 1M E7; 0 S3 ClCGYC/l 12. (5 poi ts) The Colorado River has a current that is 6mph. A boat travels 50 miles with the curre t in the same time it takes to travel 30 miles against the current. What is the speed of £59. a :59. Wi‘l’l’i >019 x-(p Current ,‘ —, KHD Ciffimfi k D (Li—3‘79” IBD,O‘;%OX f3<é5© QM: 'ESD x z W QR» Du.C.JC “1.1!... 7 ...
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Chpt89pretest0001 - MW 35 Name: Date: Dre; Score: / 100...

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