- Tue Sep 27, 2016 10:53 pm
- Forum: Geometry
- Topic: Two parallel lines cut by a curved line
- Replies:
**3** - Views:
**18**

How do you find x? It's not 38. Could it be 37? What is the use of the 75 angle? Okay; I'm going to guess that the exercise was actually something like this: Given that lines L1 and L2 are parallel, that lines L3 and L4 meet at point "p" between lines L1 and L2, that the acute angle forme...

- Mon Sep 05, 2016 3:09 pm
- Forum: Beginning Algebra
- Topic: Simplifying is not working for me: (3/2)(4x - 7) + (3x - 2)/4
- Replies:
**1** - Views:
**114**

I am trying to simply this following equation: . . . \dfrac{3}{2}\, (4x\, -\, 7)\, +\, \dfrac{3x\, -\, 2}{4} Can someone let me know how to solve this? You say that you're needing to "solve this" "equation", but there is no "equals" sign in what you've posted. ...

- Thu Aug 11, 2016 5:26 pm
- Forum: Forum Rules & Guides
- Topic: Hello, I'm Rose
- Replies:
**1** - Views:
**337**

Rosesunnerved wrote:I'm going into 10th grade this year, at age 18 and really need help in math. Hello!

Welcome! Please review this forum's

- Mon Jul 18, 2016 9:29 pm
- Forum: Advanced Algebra ("pre-calculus")
- Topic: (log x)^3= log x^3
- Replies:
**4** - Views:
**4653**

How do I see how to solve this? I do not see where to get the information. Try studying the lessons at the links the other poster gave you: Do a log rule to get the power on the right outside of the log. http://www.purplemath.com/modules/logrules.htm 1. This first step explains that you need to app...

- Sat May 14, 2016 10:56 pm
- Forum: Trigonometry
- Topic: Averaging Amplitudes of Different Frequency Bands
- Replies:
**1** - Views:
**247**

Hello everyone! I am in a pickle right now as I attempt to move forward in my research project on neurofeedback. I am trying to calculate the theta/beta ratio for individual subjects and then compare them statistically. Are you talking about brain waves, like they show here ? The issue I am having ...

- Sat May 14, 2016 10:43 pm
- Forum: Calculus
- Topic: How to prove f(x) = (cx-c*x+x-1)/(2x-x-1), where 1<c<2 is decreasing function?
- Replies:
**3** - Views:
**313**

Jinliang wrote:I have plotted the aforementioned function curves of f(x) with different c, and found that it seems to be monotony function. However, it is too hard to me to prove it. May you help me ?

How did they do the proofs in their worked examples? What method are you expected to use? Thank you!

- Thu Apr 21, 2016 8:52 pm
- Forum: Arithmetic
- Topic: Million and Billion Conversion
- Replies:
**1** - Views:
**760**

How many zeros does a million and billion have. That depends on the definitions of "million" and "billion" which (I think) vary between countries. Like "billion" in America is "a thousand million" but I'm pretty sure it's something different ("a million ...

- Thu Apr 21, 2016 8:46 pm
- Forum: Statistics
- Topic: Wilcoxon Signed Rank Test
- Replies:
**1** - Views:
**721**

rmoyer wrote:Is there a quick and easy way to accomplish this on SPSS 14?

I looked up "SPSS 14" in Google. This is a software package, right? If there are forums that offer help for that package, then maybe they could help you set up the commands (?) correctly there. Good luck!

- Sat Apr 02, 2016 2:25 pm
- Forum: Advanced Algebra ("pre-calculus")
- Topic: solving for x given: 4e^-.2x + 3e^-.3x = 5
- Replies:
**4** - Views:
**447**

how do I solve for x given: 4e^-.2x + 3e^-.3x = .5 This one is at least as bad as your other one! x\, =\, 10 i \, \bigg(2 \pi n\, +\, \pi\, -\, i \log\left[ \, \dfrac{\left(1\,-\, i\, \sqrt{3\,}\right)\, \sqrt[3]{27\,+\,i\, \sqrt{807\,}\,}}{2\, \times\, \sqrt[3]{9\,}}\, +\, \dfrac{4\, \...

- Sat Apr 02, 2016 2:15 pm
- Forum: Advanced Algebra ("pre-calculus")
- Topic: solving for x, given exponentials: 4e^2x + 5e^3x = 15
- Replies:
**7** - Views:
**870**

(a^b)(a^c)=(a^(b+c)) so above factoring won't work You're right! I think maybe "FWT" hadn't had his/her caffeine yet when s/he posted that! :v_confused: According to Wolfram's "Alpha" solver, this doesn't solve simply. They give this: x\, =\, i \, \left(2 \pi n\, -\, i \log\...