Inequalities Can You Help A GAL Out? THANKS

AI Thread Summary
The discussion revolves around solving three inequalities: 2x - 3 > x + 15, -4x = 2 < 10, and -5x + 1 < -2x + 10. The original poster expresses confusion about how to approach these types of problems and seeks help in understanding the solutions. Participants encourage the poster to rearrange the equations to isolate x and provide guidance on solving them step by step. The conversation highlights a shared struggle with similar math problems, emphasizing the importance of collaboration in learning. Overall, the thread aims to clarify the process of solving inequalities for those unfamiliar with the topic.
BeckyRN
Messages
2
Reaction score
0

Homework Statement


The Questions are 2x - 3 > x + 15
-4 x = 2 < 10 ( I am not sure how to place a line under the < on my computer)
and -5x + 1 < -2x + 10

I have never done these type questions before and if anyone is really good at explaining the answers, I would greatly appreciate it so very much.


Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
Right now, I am checking out the other questions ...hmmm there are more folks then me having trouble with these type questions. I feel more normal now. I am missing my last English class about right now.
 
BeckyRN said:

Homework Statement


The Questions are 2x - 3 > x + 15
-4 x = 2 < 10 ( I am not sure how to place a line under the < on my computer)
and -5x + 1 < -2x + 10



These aren't questions: presumably you are asked to solve for x.

Would you be able to rearrange, say, 2x-3=x+15? What would you get?
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top