know ive come on here many times just looking for the answers but this time i want the answers =) but i also wanna learn this!!!
aight heres 5 questions from my math homework today
solve each compound inequality.
question #25) 4 + k > 3 or 6k < -30
question #27) 6 - a < 1 or 3a < 12
question #29) 5y + 7 < -3 or 3y - 2 > 13
question #31) 5z - 3 > 7 or 4z - 6 < -10
question#33) -3n < -9 or -2n >10
2007-10-09 11:43:59 · 3 answers · asked by Mikey A 1 in Science & Mathematics ➔ Mathematics
4 + k > 3 or 6k < -30
k > -1 or k < -5
(-infinity, -5) U (-1, infinity) are permissible values of k.
Or, you could say k not equal [-1,-5]
<---------o---------o-------------> 1st o = -5 and 2nd o = -1
k cannot lie on or betwen the the two o's. K can be anywhere else. Solve the rest the same way.
2007-10-10 03:34:35 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋
I will tell you the secret of learning this stuff:
- Go over the material before class at home the night before
- Listen carefully during class and ask questions related to the areas that you are still confused after the teacher explanation
- Try some of the problems on your own
- Get back with your teacher...show him/her your own work and ask them for feedback
Repeat at the top. Truly, is that simple. I know you will not believe me, but give it a good try. Learning is not an spiritual quality; is hard work and tons of practice. Best wishes.
2007-10-09 11:51:33 · answer #2 · answered by alrivera_1 4 · 0⤊ 0⤋
You just need to get the letter by itself by moving everything to the other side. For example: In #25, the first part, you subtract 4 from each side and you are left with k>-1
2007-10-09 11:49:24 · answer #3 · answered by Carolyn D 5 · 0⤊ 0⤋