Tab Content
• Yesterday, 20:06
MarkFL replied to a thread Related Rates in Calculus
Yes, the length of his shadow is increasing at a rate of 4/3 ft/s, and the tip of his shadow is moving at a rate of 10/3 ft/s. :D
8 replies | 96 view(s)
• Yesterday, 16:29
MarkFL replied to a thread Related Rates in Calculus
I got 4/3 ft/s where you got 3 ft/s. You have the line: \d{y}{t}=\frac{3}{2}\d{x}{t} Now, this implies: \d{x}{t}=\frac{2}{3}\d{y}{t}
8 replies | 96 view(s)
• Yesterday, 16:20
Nicely done, Chris! (Yes) This is the solution I found elsewhere: We are given to evaluate: \lim_{n\to\infty}\left(\sqrt{\int_0^1...
4 replies | 114 view(s)
• Yesterday, 15:15
MarkFL replied to a thread Related Rates in Calculus
Suppose we wanted to work the problem in general terms. Please refer to the following diagram: $P$ is the height of the pole, $M$ is the...
8 replies | 96 view(s)
• February 26th, 2017, 23:47
Compute the following limit: \lim_{n\to\infty}\left(\sqrt{\int_0^1 \left(1+x^n\right)^n\,dx}\right)
4 replies | 114 view(s)
• February 26th, 2017, 06:31
$m>r$ holds because by definition of $r$, $m=rd$ and by assumption $d>1$. But I don't see where $s>1$ is used in the proof. It can happen, for...
1 replies | 41 view(s)
• February 26th, 2017, 06:20
If $=$, then $x$ can be canceled and we have $i=j$.
1 replies | 42 view(s)
• February 26th, 2017, 01:48
We could likely model this with a function of the form (which comes from Newton's Law Of Cooling): f(t)=c_1e^{-kt}+350 Since we know $f(0)=70$,...
1 replies | 77 view(s)
• February 26th, 2017, 01:01
My solution: Consider the objective function: F(A,B,C)=\sin(A)+\sin(B)+\sin(C)-\cos(A)-\cos(B)-\cos(C) Subject to the constraint: ...
3 replies | 114 view(s)
• February 25th, 2017, 23:35
Let's look at the behavior of the solutions near the equilibrium solution $y=3$. Suppose we have: y(0)=2.9 Then we see: y'<0 And for:
4 replies | 78 view(s)
• February 24th, 2017, 11:34
3 replies | 94 view(s)
• February 24th, 2017, 11:28
There's no need to link to the commercial site you used. Thanks! :D
3 replies | 99 view(s)
• February 24th, 2017, 00:26
Let's find the $p$th term. I think what I would do is set: \frac{n(n+1)}{2}=p Now solve for $n$... n(n+1)=2p
1 replies | 58 view(s)
• February 23rd, 2017, 22:15
Perhaps you meant how can we derive this formula. Let's begin with the definition of average acceleration: \overline{a}=\frac{\Delta v}{\Delta...
6 replies | 103 view(s)
• February 23rd, 2017, 20:43
I made a mistake in my above post...the IVP should be: \displaystyle \d{F}{t}=2-\frac{5F}{4(50-t)} where $F(0)=0$. So, this leads to: ...
7 replies | 125 view(s)
• February 23rd, 2017, 16:33
I would let $F(t)$ be the amount of fertilizer in the tank at time $t$. From the problem statement, we get the following IVP: ...
7 replies | 125 view(s)
• February 23rd, 2017, 14:31
I don't follow...it's already in the form we want to give us the acceleration. :D
6 replies | 103 view(s)
• February 23rd, 2017, 14:28
The kinematic formula you want is: \overline{a}=\frac{v_f^2-v_i^2}{2\Delta x}
6 replies | 103 view(s)
• February 23rd, 2017, 02:40
Our goal is to make MHB stand out as much as we can from our competitors by offering features you just don't see anywhere else. If we were to package...
3 replies | 128 view(s)
• February 23rd, 2017, 02:35
MarkFL replied to a thread Tapatalk... in Chat Room
Personally, I don't think Tapatalk is ready for vBulletin, much less sites using $\LaTeX$. From what I've gathered, many vBulletin admins refuse to...
4 replies | 94 view(s)
• February 23rd, 2017, 01:29
MarkFL replied to a thread Tapatalk... in Chat Room
I'd be happy if Tapatalk didn't lazily bypass most vBulletin PHP plugin hooks. (Giggle)
4 replies | 94 view(s)
• February 22nd, 2017, 12:54
The scale along the $x$ line is not clear from the picture, so it is impossible to say whether this is the graph of $y=x/2+3$.
5 replies | 154 view(s)
• February 22nd, 2017, 04:08
Your solution to the given IVP isn't correct...we are given: \d{y}{x}=9x^8e^{-x^9} where y(0)=8 \int_{y(0)}^{y(x)}\,du=\int_0^x...
1 replies | 66 view(s)
• February 21st, 2017, 23:42
Hello, MHB Community! (Wave) We are pleased to announce a new method for embedding Desmos calculators in your posts, which we hope you will find...
3 replies | 128 view(s)
More Activity

### 1 Visitor Messages

1. Hello and welcome to MHB, Henry R!

If you have any questions or comments about the forums, please feel free to address them to me or another staff member. We are happy to help and look forward to your participation here!

Best Regards,

Mark.
Showing Visitor Messages 1 to 1 of 1

#### Basic Information

Biography:
In my opinion , I'm just a student.
Interests:
Music , art and study.
Occupation:
Student

#### Statistics

Total Posts
25
Posts Per Day
0.03
Thanks Given
17
10
##### Visitor Messages
Total Messages
1
Most Recent Message
October 31st, 2014 01:30
##### General Information
Last Visit
April 1st, 2015 at 02:59
Last Post
December 15th, 2014 at 02:13
Join Date
October 30th, 2014

### 6 Friends

MHB Master

MHB Master

3. #### JamesonOffline

Администратор

4. #### MarkFLOnline

Pessimist Singularitarian

5. #### Rido12Offline

MHB Journeyman

6. #### ZaidAlyafeyOffline

زيد اليافعي

Showing Friends 1 to 6 of 6