Solve and write as a compound inequality.
1.) |x|>7
2.) |7-3x|>10
3.) |2x-5|>=7
PLEASE Show your work PLEASE.
2007-03-07 11:43:13 · 5 answers · asked by ♥Sexc Nel Nel♥ 1 in Education & Reference ➔ Homework Help
well ma name spelled wit 1 yah digg?
2007-03-07 11:48:29 · update #1
1) -7
3) -7 <= 2x -5 <= 7 --> -2 <= 2x <= 12 --> -1 <= x <=6
Note: I may have shown the work, but don't just copy it. You have to think about it. Otherwise, you will NOT do well when the exam comes.
XR
2007-03-07 11:57:52 · answer #1 · answered by XReader 5 · 0⤊ 0⤋
IxI>7
x>7 and x<-7
|7-3x|>10
7-3x>10 7-3x<-10
-3x>10-7 -3x<-10-7
-3x>3 -3x<-17
Divide both sides by -3 (in both equations) (switch the signs because you are dividing by negative)
x<-1 x>17/3
|2x-5|>=7
2x-5>=7 2x-5<=-7
2x>=7+5 2x<=-7+5
2x>=12 2x<=-2
x>=6 x<=-1
2007-03-07 11:59:56 · answer #2 · answered by bosankasam 2 · 0⤊ 0⤋
i really dont know what ur tryin to find out here.. compound inequality...u mean like just solving it for x?
2007-03-07 11:50:18 · answer #3 · answered by adventureisrighthere 2 · 0⤊ 0⤋
um, number 1
x>7 and -x>7
x>7 and x< -7
the solution see is x>7Ux<-7
Happy?
2007-03-07 11:54:34 · answer #4 · answered by cihfwt 2 · 0⤊ 0⤋
yeah...
i think the instructions of YOUR homework tell YOU to show YOUR work.
not others.
and channel has two n's
2007-03-07 11:47:38 · answer #5 · answered by Anonymous · 0⤊ 0⤋