Thursday

April 17, 2014

April 17, 2014

Posted by **Math asap** on Wednesday, November 10, 2010 at 6:28pm.

2)10-3x<5 answer:x>5/3

3)|7-x|>2 answer:x>-5 x<-9

4)|x+0.5|=0.25 answer:x=-o.25,-0.75

thank you very very much!!!

- please check -
**Henry**, Thursday, November 11, 2010 at 10:09pmProb.1 and 2 are correct.

3. [7 - x] > 2.

Eq1: +(7 - x) > 2. Eq2: -(7 - 7)>2.

Eq1: +(7 - x) > 2,

7 - x > 2,

-x > 2 - 7,

-x > -5,

Divide both sides by -1 and reverse inequality sign:

x < 5.

Eq2: -(7 - x) > 2.

-7 + x > 2,

x > 2 + 7,

x > 9.

Solution set: x < 5, and x > 9.

Therefore, all values of x < 5 and

> 9 shuld satisfy the inequality.

Values of x between 5 and 9 should not

satisfy the inequality.

Eq3: 5 > x > 9.

4. CORRECT!!

You did great! you missed only one.

You forgot to reverse the inequality sign when you divided by -1.

Most students would have missed 3 and 4.

**Related Questions**

algebra - 1)3/4+x>1 answer:x>1/4 2)10-3x<5 answer:x>5/3 3)|7-x|>2...

Math - help with these questions~ Thank you 1. Determine the interval(s) on ...

Precalculus - 1. Determine the interval(s) on which x^2 + 2x -3>0 a)x<-3, ...

Precalculus - Help with these questions help with these questions~ Thank you 1. ...

Algebra - Just wondering if I did this correctly step by step. If not ...

Algebra 2(check) cont.. - 1)solve the inequality -3(r-11)+15>_9 my answer = r...

math- check this please - 1. 3t<-9=t<-3 2.4m>8=m>2 3.10<-2w 5<...

math rational comparing #'s - can you check: < > = -2/9 > -4/9 -1/6 >...

AP CHEMISTRY - The following acid-base indicators are available to follow the ...

AP CHEMISTRY - The following acid-base indicators are available to follow the ...