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• May 24th, 2018, 16:00
MarkFL replied to a thread Word problem on vectors in Geometry
Hello, and welcome to MHB, Gummg! (Wave) I would write the plane's velocity vector as: \vec{v}=485\left\langle...
3 replies | 78 view(s)
• May 22nd, 2018, 14:03
Here's the image you tried to hotlilnk:
4 replies | 97 view(s)
• May 22nd, 2018, 00:46
I would take Greg's advice and write: 5\sqrt{2}\pm7=(b\sqrt{2}\pm a)^3=\pm...
5 replies | 146 view(s)
• May 20th, 2018, 23:49
Where does "it" say that?
11 replies | 17728 view(s)
• May 16th, 2018, 20:53
MarkFL replied to a thread Jokes in Chat Room
175 replies | 24424 view(s)
• May 14th, 2018, 23:15
We know: \sum_{k=1}^n(k)=\frac{n(n+1)}{2} And so the given series becomes: ...
1 replies | 91 view(s)
• May 12th, 2018, 09:10
He posted a question in one of my vB product threads, which leads me to believe he may run his own site.
7 replies | 250 view(s)
• May 11th, 2018, 19:31
7 replies | 250 view(s)
• May 11th, 2018, 11:53
Hello, and welcome to MHB! (Wave)
7 replies | 250 view(s)
• May 11th, 2018, 11:34
That would require another product, as that's not what this product is intended for. :)
3 replies | 248 view(s)
• May 10th, 2018, 15:26
MarkFL replied to a thread solve for x in Pre-Algebra and Algebra
Is the equation: 2^{3x}+1=32 Or: 2^{3x+1}=32 I suspect it is the latter, but I want to be sure first. :)
5 replies | 142 view(s)
• May 9th, 2018, 03:00
Yes, I get equivalent results. (Yes)
6 replies | 283 view(s)
• May 9th, 2018, 00:32
I got the equivalent: x_2(t)=\frac{\alpha-3}{10\alpha}e^{-3t}\left(1-e^{\alpha t}\right) Now, for the optimization of this function, recall we...
6 replies | 283 view(s)
• May 8th, 2018, 21:48
MarkFL replied to a thread Hi in Introductions
Hello! Glad you found us. (Wave)
3 replies | 161 view(s)
• May 8th, 2018, 21:44
I would begin with: \d{x_1}{t}=-3x_1 where x_1(0)=\frac{1}{10} Hence: x_1(t)=\frac{e^{-3t}}{10} Then:
6 replies | 283 view(s)
• May 8th, 2018, 09:48
Yes, that is one of the behaviors of spammers. Unfortunately, this gets innocent posts like the one above moderated as well. But, as with everything...
10 replies | 623 view(s)
• May 8th, 2018, 09:26
The post was put into the moderation queue because a new user "necroposted." I have just approved the post.
10 replies | 623 view(s)
• May 6th, 2018, 11:24
All the assumptions were posted.
9 replies | 162 view(s)
• May 5th, 2018, 19:28
I would speak to the professor to see what's up with that question. :)
4 replies | 132 view(s)
• May 5th, 2018, 13:08
4 replies | 132 view(s)
• May 5th, 2018, 11:35
The slope of the line can be found from: ...
4 replies | 132 view(s)
• May 4th, 2018, 22:28
Well, that's a tiny graph, which isn't very easy to read. I would begin with the amplitude A(x)=a\left(e^{bx}+d\right) Let's say: ...
9 replies | 162 view(s)
• May 4th, 2018, 21:07
If $d=0$ and presumably $b<0$, then what would prevent the amplitude from tending to zero as $x\to\infty$, instead of some value greater than zero?
9 replies | 162 view(s)
• May 4th, 2018, 15:33
MarkFL replied to a thread Trig ratio challenge in Trigonometry
Why is this posted here in the Challenges forum?
6 replies | 194 view(s)
• May 3rd, 2018, 21:27
It appears to me that you need something of the form: y=a\left(e^{bx}+d\right)\cos(cx)+f
9 replies | 162 view(s)
• May 2nd, 2018, 14:13
MarkFL replied to a thread Axioms of Integration in Calculus
I've moved this thread to our "Calculus" forum as I assume we are discussing integral calculus. :)
5 replies | 179 view(s)
• May 2nd, 2018, 14:07
Here is this week's POTW: A fire helicopter carries a bucket of mass $m$ at the end of a cable. Flying back from a fire with an empty bucket at...
1 replies | 103 view(s)
• May 2nd, 2018, 14:05
Congratulations to the following members for their correct submission: kaliprasad My solution is as follows (kaliprasad used the same...
1 replies | 139 view(s)
• May 1st, 2018, 21:55
MarkFL replied to a thread Visible Stickies in vBulletin Products
Update - Version 1.1 Fixed bug regarding soft deleted/moderated sticky threads being visible to non-moderators.
2 replies | 320 view(s)
• April 28th, 2018, 15:52
Hello MHB! (Wave) Up until now, when you create a live Desmos Calculator, the only things saved are your viewport dimensions and expressions. We...
1 replies | 120 view(s)
• April 27th, 2018, 10:29
Hello and welcome to MHB! :D We ask that our users show their progress (work thus far or thoughts on how to begin) when posting questions. This...
2 replies | 126 view(s)
• April 26th, 2018, 10:41
Here is this week's POTW: A charge $-q_1$ is located at the origin of a $y$-axis and a charge $-q_2$ is located at $y=d$. At what point along...
1 replies | 139 view(s)
• April 26th, 2018, 10:40
Congratulations to the following members for their correct submission: kaliprasad My solution is as follows: For the entire system...
1 replies | 111 view(s)
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