It's either
A) -10 < 3x - 5 < 10
B) 3x + 5 < 10
C) 3x - 5 < 10 or 3x - 5 < - 10
I'm using an online study partner and every answer I choose says its incorrect, it must be a flaw with the software or something but now I'm confused as to what the correct answer is, my head is spinning :( LOL!
2006-10-13 17:52:47 · 7 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Don't believe them. It's B.
Could be A too.
2006-10-13 18:02:07 · answer #1 · answered by Ron D 4 · 0⤊ 1⤋
This is how absolute value, aka, mod of an expression works....
lets consider this question itself when x>0...
when x>0,
3x-5<10
when x<0,
5-3x<10 {or} 3x-5>-10
Remember the Idea of a mod function
|x| is:
1. x, x>0
2. 0, x=0
3. -x, x<0
2006-10-13 23:05:40 · answer #2 · answered by Siddarth 2 · 0⤊ 0⤋
A is the asnwer
The answer set is > -10 and <10
If you use b then x=-10 would be -25 which is <10, but plug it back into the original equation abs val -25 is 25 which is not less than 10
if you c the second half also does the same as b
Good luck!!
2006-10-13 18:40:27 · answer #3 · answered by George L 1 · 0⤊ 1⤋
|3x-5| < 10
3x - 5 < +- 10
3x - 5<10 and 3x-5< -10
2006-10-13 18:01:56 · answer #4 · answered by farah_727rash 3 · 1⤊ 0⤋
What the people said before this answer.
2006-10-13 18:00:33 · answer #5 · answered by rjakjr 3 · 1⤊ 0⤋
C. You always split it into two equations
2006-10-13 18:00:46 · answer #6 · answered by punjabi007 2 · 0⤊ 0⤋
"C"
Absolute Value always has two answers
2006-10-13 18:00:18 · answer #7 · answered by minion 3 · 1⤊ 0⤋