• Today, 11:04
When I was a student, I found one of the best ways to understand things is to look at them in general terms. For example, in this problem, rather...
21 replies | 164 view(s)
• Today, 10:49
What we see is that we must have: L=W And so, what we have found is that for a rectangle of a given area, the perimeter is the smallest it can...
21 replies | 164 view(s)
• Today, 10:34
Your next step should be: (L-W)^2=0 So, how must L and W be related in order for this to be true?
21 replies | 164 view(s)
• Today, 10:28
MarkFL replied to a thread Two Pieces of Wire in Pre-Calculus
No, what we want is: A\left(W_1\right)+A\left(W_2\right)>5 A(x)+A(12-x)>5 Now, the arguments for the area function represent wire lengths,...
10 replies | 67 view(s)
• Today, 10:10
MarkFL replied to a thread Two Pieces of Wire in Pre-Calculus
Yes, now we need to answer the question: For which values of x will the combined areas of the squares exceed 5 cm^2? We have two pieces of wire...
10 replies | 67 view(s)
• Today, 10:00
MarkFL replied to a thread Two Pieces of Wire in Pre-Calculus
Okay, you have a piece of wire whose length is let's say W...you bend it into a square...what is the perimeter of the square? Then using your formula...
10 replies | 67 view(s)
• Today, 09:55
Yes, once you simplify, you will find the implication. :D
21 replies | 164 view(s)
• Today, 09:53
Yes, now combine terms on the LHS...:D
4 replies | 33 view(s)
• Today, 09:44
MarkFL replied to a thread Two Pieces of Wire in Pre-Calculus
Let's use x for the length of the sides of the square, so we have: P=4x A=x^2 Now, we want to replace x in the formula for the area with an...
10 replies | 67 view(s)
• Today, 09:39
You're just seeing what the equation implies about the relationship between L and W. :D
21 replies | 164 view(s)
• Yesterday, 23:01
I am reading Anderson and Feil - A First Course in Abstract Algebra. I am currently focused on Ch. 45: The Splitting Field ... ... I need...
0 replies | 12 view(s)
• Yesterday, 22:50
We have: \sqrt{LW}\le\frac{L+W}{2} When I ask "when does equality occur," I am essentially asking you to solve: \sqrt{LW}=\frac{L+W}{2} ...
21 replies | 164 view(s)
• Yesterday, 21:56
I would look at a substitution like: u=\sqrt{x^2+4x+3}\implies dx=\frac{u}{x+2}\,du And the integral then becomes: I=\int\frac{1}{u^2+1}\,du
1 replies | 24 view(s)
• Yesterday, 19:33
MarkFL replied to a thread Two Pieces of Wire in Pre-Calculus
What is the area $A$ of a square whose perimeter is $P$?
10 replies | 67 view(s)
• Yesterday, 19:25
You don't want to multiply an inequality by an expression whose sign is unknown...arrange everything to one side and then get your critical values...
4 replies | 33 view(s)
• Yesterday, 19:21
You are assuming x is positive when you do that. A better step is to subtract x/2 from both sides: \frac{2}{x}-\frac{x}{2}<0 Combine terms: ...
2 replies | 30 view(s)
• Yesterday, 15:00
Yes, we have a parabola opening upwards, and given that it has two real roots, we should expect to find it to be negative in between its roots. :D
7 replies | 68 view(s)
• Yesterday, 14:44
Okay, I have several issues here: 1.) We ask that you post no more than 2 questions per thread: 2.) You've shown no effort:
1 replies | 62 view(s)
• Yesterday, 13:38
In this problem, you have a function representing a parabola that opens upwards. We should then expect, given that it has two real roots, that the...
7 replies | 72 view(s)
• June 22nd, 2017, 22:28
Thanks Euge ... that helped in a big way ... Most grateful for your help and support ... Peter
2 replies | 61 view(s)
• June 22nd, 2017, 22:26
Thanks Euge ... Appreciate all your help ... Peter
6 replies | 64 view(s)
• June 22nd, 2017, 22:23
I am reading Anderson and Feil - A First Course in Abstract Algebra. I am currently focused on Ch. 45: The Splitting Field ... ... I need...
0 replies | 25 view(s)
• June 22nd, 2017, 14:34
If we know the magnitude $M$ of a vector $\vec{v}$, and the direction $\theta$ in which it points, then we may express the vector in component form...
5 replies | 113 view(s)
• June 22nd, 2017, 13:47
Let's examine a general rectangle...using the AM - GM inequality we may state: \sqrt{LW}\le\frac{L+W}{2} When does equality occur? Given...
21 replies | 164 view(s)
More Activity

### 71 Visitor Messages

1. Yes, we're still far and away the best math help forum on the web...that much hasn't changed. The arcade you played is relatively new, and that was a lot of work to put together. We now support TikZ images, and that was a lot of work as well. But, we're always open to suggestions if you think something needs to be changed.
2. Hello and welcome back to MHB, mathbalarka!

We are happy to see that you have returned, and we look forward to your continued participation here!

On Behalf Of MHB's Staff,

Jameson.
3. Nice to see that you are back!
4. Welcome back!!
5. Thanks for the birthday wishes!
6. Happy Birthday Balarka!!!
7. Happy Birthday!
8. I was waiting for the promotion as enthusiastic as you were.
9. Welcome to the team of math helpers
10. Haha, that would be Mark. I like the way sounds, don't you?
Showing Visitor Messages 1 to 10 of 71
Page 1 of 8 123 ... Last
Page 1 of 8 123 ... Last

#### Basic Information

Date of Birth
January 12, 2000 (17)
Biography:
I know a thing or two about topology. Find number theory interesting but don't know much about it.
Location:
West Bengal, India
Interests:
Number Theory
Country Flag:
India

#### Signature

Some of my notes on number theoretic topics are on a few primality tests and on Hardy & Littlewood's result (incomplete). The other articles are on quintics : about a brief description of Kiepert algorithm and a short introduction on quintic-solving algorithms, respectively. I have also written up an introductory thread on Riemann Hypothesis

#### Statistics

Total Posts
573
Posts Per Day
0.37
Thanks Given
699
1,378
2.405
##### Visitor Messages
Total Messages
71
Most Recent Message
December 25th, 2016 08:02
##### General Information
Last Activity
February 12th, 2017 15:24
Last Visit
January 14th, 2017 at 13:06
Last Post
January 1st, 2017 at 22:39
Join Date
March 22nd, 2013
Referrer
MarkFL
Referrals
2
Referred Members
neelmodi, zuby

### 17 Friends

1. #### agentmulderOffline

MHB Apprentice

MHB Master

3. #### BacteriusOffline

MHB Journeyman

MHB Master

5. #### FantiniOffline

MHB Craftsman

6. #### MarkFLOffline

Pessimist Singularitarian

7. #### mathmaniacOffline

MHB Craftsman

8. #### mente oscuraOffline

MHB Craftsman

MHB Master

10. #### PetrusOffline

MHB Journeyman

Showing Friends 1 to 10 of 17
Page 1 of 2 12 Last