Posted by robert on Wednesday, December 26, 2007 at 8:18pm.
Solve the compund inequality and graph the solution.
4<t+2<4
First I did t+2>4 and I got t>2 and I did t+2<4 and i got t<2. Then I graphed it and I dot an open dot on 2 and 2. Is this right?
1<1/2x<1
I did 1/2x>1 and i got x>2 and i did 1/2x<1 and i got x<2. I graphed it and put a open dot on 2 and 2. Is this right?

math  robert, Wednesday, December 26, 2007 at 9:40pm
no one is answering.

math  Reiny, Thursday, December 27, 2007 at 12:32am
You made a small arithmetic error in
t+2>4
Should have been t > 6
Actually the easiest way to do these questions is to leave the compound inequality as it it and simply perform operations to isolate the variable between the two inequality signs.
In this case:
4<t+2<4 , now subtract 2 from each of the 3 parts
42 < t+22 < 42
6 < t < 2
Place an open dot on the 6 and the 2 and join with a solid line

math  robert, Thursday, December 27, 2007 at 3:48pm
is the second queston right?
Answer This Question
Related Questions
 math  Solve the compund inequality and graph the solution. 4<t+2<4 First...
 graphing  which of these is correct description of each inequality as it would ...
 algebra  I just need a quick check before I hand in my work if you would......
 MATH PREALGEBRA  Explain how to know wheather the endpoint of the graph of an ...
 Vectors: Dot product  Given a and b unit vectors if a+b=square root 3, ...
 Math  Vectors  If "u = (2,2,1)", "v = (3,1,0)" and "w = (1,7,8)", verify ...
 Math/Check  I have a few problems I need you to take a look at and tell me if ...
 Algebra/math  I have a few problems I need you to take a look at and tell me ...
 general math  here's an easy one for starters... what means greater or equal to...
 Math  Hi guys! I am desperately in need of help. I really need to do good on ...
More Related Questions