Saturday

December 20, 2014

December 20, 2014

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

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 3:38pmThe 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 3:44pmThank you!

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

**Answer this Question**

**Related Questions**

Solve Inequality - Solve the inequality. Express your solution using interval ...

math - Please help. Hi, I am having some problems with inequalities. It is ...

Math Help Please - Please show me how to put this in interval notation. Thanks! ...

math-inequalities - Hi, I am having some problems with inequalities. It is ...

ALG - Solve. Write the solution set using interval notation. x2 + 16x + 64 >...

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 II - I need some help with some problems as well as need some checked. ...

algebra - solve the inequality and write the solution set using interval ...

algebra - solve the inequality. Express the solution using interval notation and...