# Activity Stream

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• Today, 12:56 PM
As Dr.Peterson indicated, using units can sometimes make life easier when transforming from one system of units to another. For example, to convert ...
3 replies | 35 view(s)
• Today, 12:34 PM
You are correct. I actually made a typo when I created this post. I was concentrating so hard on this LaTex stuff that I didn't double check my...
3 replies | 48 view(s)
• Today, 12:30 PM
Thank you; your statements make complete sense. Here is an example equation: The maximum gas velocity V (in m/s) in a pipe is given by V =175...
3 replies | 35 view(s)
• Today, 11:47 AM
Try u = e^{x} + 1. Please read and heed my signature. This has other implications, such as, if you get two different answers, one of them most...
3 replies | 48 view(s)
• Today, 11:44 AM
You should designate two different constants (e.g. C1 and C2) for two different methods of attack. As long as those two integrated functions have...
3 replies | 48 view(s)
• Today, 11:42 AM
?? Why have you added it? The distance between two curves is obtained by subtraction. Maybe I'm not understanding your question.
1 replies | 27 view(s)
• Today, 11:29 AM
Hello Again!! I've just finished my first semester of calculus.. YAY! I still have a few questions on some topics from the class that I didn't...
3 replies | 48 view(s)
• Today, 11:27 AM
Use the shell method to find the volume of the solids generated by revolving the region's blunderbuss the curves and lines about the y axis. y=x....
1 replies | 27 view(s)
• Today, 11:18 AM
It may be helpful if you can give a specific example of the sort of formula you are asking about, and the units you want to change it to, so we can...
3 replies | 35 view(s)
• Today, 10:23 AM
tkhunny replied to a thread Limits problem in Calculus
You gave up too soon AND you already did too much work trying to multiply that annoying numerator. Do this: 1) Do NOT multiply the complicated...
1 replies | 32 view(s)
• Today, 10:21 AM
I'm not sure whether the actual fourth-degree equation will be better to use than some preliminary form. For example, it is possible that if you just...
3 replies | 73 view(s)
• Today, 10:20 AM
For many models, if your translations and rotations can be treated as Random Variables, then the reciprocal of the Variance can produce acceptable...
1 replies | 36 view(s)
• Today, 10:18 AM
Denis replied to a thread Ancient Crypt? in Math Odds & Ends
4 replies | 188 view(s)
• Today, 10:08 AM
In this problem, they have both marked and stated the congruences (of angles, though not of sides). I don't see how you can say nothing is marked;...
6 replies | 79 view(s)
• Today, 10:02 AM
There are different ways to indicate that sides are congruent. In this case, nothing is marked; all the information apart from how parts are...
5 replies | 63 view(s)
• Today, 10:01 AM
Is there a procedure (or process) that can be followed to transform a formula or an equation that uses metric units to an equivalent one that uses US...
3 replies | 35 view(s)
• Today, 09:55 AM
chance of profiting spin the wheel where numbers 1 to 10 and if I bet $1 I win$8 plus my $1 bet making a total of$9 return. So my idea would...
0 replies | 14 view(s)
• Today, 09:35 AM
Hi guys, at first I want to apologize for my broken English, here is my problem, My girlfriend is writing her bachelor thesis in animal science (I...
0 replies | 12 view(s)
• Today, 09:19 AM
Subhotosh Khan replied to a thread Bodybfat in Arithmetic
First convert everything to pounds. 1 stone = ? pounds 15 stone 3 pounds = ? pounds How pounds of fat for that weight = ? and continue...
1 replies | 41 view(s)
• Today, 09:02 AM
Gaz44 started a thread Bodybfat in Arithmetic
If a person weighs 15 stone 3 pounds and there body fat percentage is 33%. Then loses 1 stone in weight which is all actual body fat. What would...
1 replies | 41 view(s)
• Today, 06:25 AM
kiu1 started a thread Limits problem in Calculus
I have tried to multiply the conjugate over the conjugate (sqrt5x-1 +sqrt 4x+1)/(sqrt5x-1 +sqrt 4x+1), then the upper number becomes even more...
1 replies | 32 view(s)
• Today, 05:32 AM
Hi boazuw, You should use the definition: this is the set of polynomials f(x) such that: \displaystyle\int_0^1 (f(x))^2\;dx=1 If you write...
1 replies | 78 view(s)
• Today, 04:52 AM
mmm4444bot replied to a thread Ancient Crypt? in Math Odds & Ends
Last hints: Direct on the left 'e' on the right: - - - - - e No indicators
4 replies | 188 view(s)
• Today, 04:24 AM
Yes -- that's what I got. If they want the other form, then they would need to say so (like: "Express the solution without any logarithms of...
5 replies | 77 view(s)
• Today, 04:14 AM
Right. x^2 - 3x - 10 = 0 You found the Real solutions, by factoring. That's good, when the denominator factors. If it does not factor, then you...
5 replies | 61 view(s)
• Today, 04:06 AM
3e^(2x)/e^(x-3) + 2 = 7 e^2x-(x-3)=5/3 (quotient rule?) e^2x-x+3=5/3 e^x+3=5/3 x+3=ln5/3
5 replies | 77 view(s)
• Today, 03:48 AM
So if the problem can be solved when the denominator equals zero then its all reals except for the solutions (i.e. 4/X^2-3x-10 -> denominator factors...
5 replies | 61 view(s)
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