Answers

2016-08-01T20:21:17+08:00
Omg, pls don,t kp relyng...this precalculs..u ned to knw better dis b4 mstring lnear calculus.. 1.) x^2+9x+14>0 by factoring; (x+7)(x+2)=0 x=-7; x=-2 ----l-----------l------0 -7 -2 inequality x+7)(x+2) >0 x<-7 (-) (-) =+ >0..satisfy -70 ...does not satisfy x>-2 (+) (+)=+>0.....satisfy the ineq solution set: {x/(x<-7,x>-2)} domain all nos less than-7 union all nos more than -2; graph: //////////o-----------------o////////////l0/////// x -7 -2 x open interval
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2016-08-01T20:21:25+08:00
1.) x < -7 U x > -2
2.) 2 < r < 8 or (2,8)
3.) x ≤ -5 U x ≥ -1
4.) [(7 - √89) / 2] ≤ m ≤ [(7+√89)/2]
5.) x< -2 U x > 7
6.) -4 < t < -3/2
7.) x ≤ 1 U x ≥ 5/3
8.) -1/2 ≤ p ≤ 1/2
9.) x < -2 U x > 7/2
10.) q ≤ -5/3 U q≥1
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