Posted by **Carmin** on Sunday, August 2, 2009 at 3:23pm.

Solve and express in interval notation

Solve: |5 – 8x| > 11 and write interval notation for the solution set. This is what I get but I need it in interval notation.

x<-3/4 or x >2

Solve: (x-3)/(x^2-25)<0 and write interval notation for the solution set.

This is what I get for this one but I need it in interval notation.

x<-5 or 3<x<5

- Algebra -
**MathMate**, Sunday, August 2, 2009 at 3:38pm
The answers are correct.

To represent disjoint intervals in interval notation, we only need to join each interval using a "union sign", or ∪.

So the required answer would be:

(-∞, -3/4) ∪ (2, +∞)

Parentheses have been used in the above cases (instead of square brackets) because in each of the 4 cases, the values of the limits are to be excluded from the interval.

- Algebra -
**Carmin**, Sunday, August 2, 2009 at 3:44pm
Thank you!

- Algebra -
**MathMate**, Sunday, August 2, 2009 at 3:49pm
You're welcome!

## Answer this Question

## Related Questions

- Solve Inequality - Solve the inequality. Express your solution using interval ...
- Math Help Please - Please show me how to put this in interval notation. Thanks! ...
- math - Please help. Hi, I am having some problems with inequalities. It is ...
- math-inequalities - Hi, I am having some problems with inequalities. It is ...
- Inequalities Interval Notation - Solve: (2 + x)(5 + x)(4 - x) < 0 (write ...
- ALG - Solve. Write the solution set using interval notation. x2 + 16x + 64 >...
- Algebra - Please solve for the interval notation corresponding to the set ...
- algebra - solve {5-8x}>11 and write interval notation for the solution set.
- Algebra - Solve |6x – 7| < = 25 and write interval notation for the solution ...
- Algebra - Find the domain of the function. (Write your answer using interval ...

More Related Questions