Tab Content
• Today, 03:24 PM
5 replies | 36 view(s)
• Today, 12:11 PM
Do you know how to calculate the magnitude of a vector V = <a,b>? What does your class notes say? What does Google say?
5 replies | 36 view(s)
• Today, 09:06 AM
Rounding-off is an economical decision which depends on the application. You may want to carry a large number of significant digits while designing...
8 replies | 133 view(s)
• Today, 07:51 AM
That statement, in general, holds true ONLY for multiplication (and division).
3 replies | 43 view(s)
• Yesterday, 02:29 PM
a) After you calculated dQ/dt - it is an algebra problem! Can you "simplify" the term "40 - Q", from the knowledge Q = 40*.
2 replies | 59 view(s)
• Yesterday, 09:54 AM
Quick answer is that circles and squares have different properties. That is why (dA/dr = C) circle gives you the maximum enclosed area for a given...
4 replies | 83 view(s)
• Yesterday, 09:29 AM
What are your thoughts regarding the assignment? Please share your work with us ...even if you know it is wrong. If you are stuck at the...
4 replies | 82 view(s)
• Yesterday, 05:49 AM
v2=0.6272732+1.965782 ................ What is v2?
2 replies | 44 view(s)
• 05-22-2018, 05:35 PM
In family with no child M = F In family with 1 child M < F In family with 2 children M = F In family with 3 children M > F In family with...
15 replies | 217 view(s)
• 05-21-2018, 03:15 PM
y = (6-2x)^1/2 dy/dx = 1/2 *(-2) * (6-2x)^(-1/2) at x = 1 → dy/dx = -1/2 and y = 2 equation of the tangent line: y - 2 = (-1/2) * (x - 1)...
5 replies | 129 view(s)
• 05-21-2018, 07:49 AM
Apply integration by parts again on the resulting integral.
8 replies | 153 view(s)
• 05-21-2018, 07:46 AM
No .... that does not work here....
8 replies | 153 view(s)
• 05-21-2018, 07:40 AM
First step - simplify e^ln(x) = ?? Second step - What is the domain of the expression above? continue....
6 replies | 151 view(s)
• 05-20-2018, 08:27 PM
What are your thoughts regarding the assignment? Please share your work with us ...even if you know it is wrong. If you are stuck at the...
6 replies | 151 view(s)
• 05-20-2018, 08:23 PM
For 'x' units sold: Profit = 563*x - (x^3-60x^2+1400x+1000) Now maximize it!
2 replies | 72 view(s)
• 05-20-2018, 01:32 PM
7 replies | 209 view(s)
• 05-20-2018, 06:57 AM
Welcome.... Two of the resources: purplemath.com KhanAcademy videos There are some simple strategies for "isolating" variables.
2 replies | 98 view(s)
• 05-19-2018, 08:59 PM
What is the outer circumference of the deck? = Pi * (484) Divide that into 17 equal parts. What do you get?
2 replies | 141 view(s)
• 05-19-2018, 08:16 PM
Does x = 0.75 satisfy your equation 2x^2 = -x^4 + x^3 + 7x^2 + 2x - 4]?
7 replies | 205 view(s)
• 05-19-2018, 06:16 PM
You are being asked: If y =\sqrt{ r^2 - x^2} (a) \frac{dy}{dx} = ? (b) Show that: \displaystyle{\int_{-r}^{+r}...
1 replies | 98 view(s)
• 05-19-2018, 02:02 PM
Determine the equation of the line through points (-10, -12) and (5, 3). Then calculate the perpendicular distance of the line from the...
1 replies | 90 view(s)
• 05-19-2018, 01:58 PM
I have deleted all the "personal" profile info from the profile page of Marshall1432. Do you think that is sufficient?
10 replies | 466 view(s)
• 05-19-2018, 12:32 PM
Send me your old user ID. I'll see what I can do.
10 replies | 466 view(s)
• 05-19-2018, 11:58 AM
solve: 10 * 2^x - 8 * 5^(x-2) = 0 2^(-2) * 2^x - 5^(-1) * 5^(x-2) = 0 Continue.....
11 replies | 315 view(s)
• 05-19-2018, 11:49 AM
This is Subhotosh Khan. I have been volunteer/mod for this forum for multiple years. However, I do not know the "mechanics" of totally...
10 replies | 466 view(s)
• 05-19-2018, 09:49 AM
This equation does not have "rational roots". The only way I see to solve this is through numerical methods.
7 replies | 205 view(s)
• 05-18-2018, 07:46 AM
I suggest we should let the OP discover the answer with nudge and help. Denis - you are trying to be new Soroban.......
8 replies | 226 view(s)
• 05-18-2018, 07:40 AM
Do you know the meaning of those symbols? What does your class-notes say?
2 replies | 126 view(s)
• 05-18-2018, 07:35 AM
From knowing a-priori: 1 + 22 + 32 + 42.....+ (n-1)2 + n2 = 1/6 * n * (n+1) * (2n+1) Do a google-search on "sum of square series" for detailed...
2 replies | 203 view(s)
• 05-18-2018, 07:28 AM
Using MS-excel and matrix inversion, I get: x = 3.62069 y = 0.724138
3 replies | 141 view(s)
More Activity

#### Signature

“... mathematics is only the art of saying the same thing in different words” - B. Russell

Total Posts
17,485
Posts Per Day
4.38
Last Activity
Today 03:26 PM
Join Date
06-18-2007
Referrals
2