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by nona.m.nona
Fri Oct 21, 2016 4:13 pm
Forum: Beginning Algebra
Topic: Solving Multi Step Equations
Replies: 3
Views: 908

Re: Solving Multi Step Equations

Hi, thank you for your response. We are not understanding how in your example of the problem, there is a -1x. In the original problem that I posted, there is no -1x. Please explain how you got this number. Thank you. How many x's are in "x"? Is this not one "x"? While the "1" is "understood" and no...
by nona.m.nona
Tue Oct 18, 2016 2:14 pm
Forum: Trigonometry
Topic: Ti Nspire Unexpected Calculations
Replies: 2
Views: 402

Re: Ti Nspire Unexpected Calculations

It seems you're not the only user to encounter this issue, but it seems rare and the solution eludes.
by nona.m.nona
Mon Oct 03, 2016 9:31 pm
Forum: Geometry
Topic: Two parallel lines cut by a curved line
Replies: 7
Views: 620

Re: Two parallel lines cut by a curved line

I drew a third line so the 75 split into 37 and 38, 38 being the bottom half. This means x is 38, which it isn't. You still don't show your work, so we will have to guess. You likely started with something along these lines: picture: \ /L3 \ / \ /37* -----------\----/--------- L1 \ /A _____________...
by nona.m.nona
Tue Sep 27, 2016 2:50 pm
Forum: Beginning Algebra
Topic: Solving Multi Step Equations
Replies: 3
Views: 908

Re: Solving Multi Step Equations

Hi everyone, we are needing help on [solving] a multi-step equation. \mbox{Solve }\, -x\, -\, 2\,=\, 3x\, +\, 5 In this [worked solution]: -x - 2 = 3x + 5 -1x - 2 = 3x + 5 -3x -3x ---------------- -4x - 2 = 0x + 5 <=== -4x - 2 = 5 -4x - 2 = 5 + 2 = +2 ------------ -4x + 0 = 7 -4x = 7 -4x = 7 --- --...
by nona.m.nona
Tue Sep 27, 2016 2:44 pm
Forum: Geometry
Topic: Two parallel lines cut by a curved line
Replies: 7
Views: 620

Re: Two parallel lines cut by a curved line

How do you find x? It's not 38. Could it be 37? What is the use of the 75 angle? Lacking information regarding "x", "38", "37", "the 75 [degree?] angle", or any other information regarding this exercise, I'm afraid there is no way to proceed. Kindly please enquire of your instructor regarding all t...
by nona.m.nona
Thu Jul 14, 2016 6:43 pm
Forum: Intermediate Algebra
Topic: Sorry my ignorance but please help me to understand why x/sqr(x)
Replies: 2
Views: 958

Re: Sorry my ignorance but please help me to understand why x/sqr(x)

...he states that x/sqr(x) is equal to sqrt(x) which i obviously believe i typed x/sqrt(x) in wolfram alpha and it also gave me the result sqrt(x) but i don't understand why What did you get when you did the simplification? You noted that: \sqrt{ x^2\,}\, =\, x (for non-negative x) so: x\, =\, \lef...
by nona.m.nona
Thu Jul 14, 2016 6:34 pm
Forum: Beginning Algebra
Topic: Order of operations isn't working.
Replies: 3
Views: 798

Re: Order of operations isn't working.

I don't understand math; that's why I'm here. I thought that I was doing pemdas exactly...addition comes before subtraction. It seems to me that I'm doing exactly what they gave me. No. As explained in ( this ) lesson, addition and subtraction are at the same "level" and are done at the same time, ...
by nona.m.nona
Sun May 15, 2016 12:29 pm
Forum: Calculus
Topic: How to prove the following function is increasing function?
Replies: 5
Views: 1052

Re: How to prove the following function is increasing function?

Note to other viewers: This user has posted similar questions here, and has "voluntarily" removed them from here.
by nona.m.nona
Sun May 15, 2016 12:27 pm
Forum: Calculus
Topic: How to prove the following function is increasing function?
Replies: 5
Views: 1052

Re: How to prove the following function is increasing function?

I am stuck on figuring out why the following function is a increasing function when I read a paper. The function is following f(x)\, =\, \dfrac{(x\, -\, 1)\, c^x\, -\, 2x\, c^{x-1}\,+\,x\,+\,1}{2^x\,-\,x\,-\,1}, \, \mbox{ with }\, 1\, <\, c\, <\, 2\, \mbox{ and }\, x\, >\, 2. This appears to be ide...

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