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• Yesterday, 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)...
3 replies | 65 view(s)
• Yesterday, 07:49 AM
Apply integration by parts again on the resulting integral.
6 replies | 124 view(s)
• Yesterday, 07:46 AM
No .... that does not work here....
6 replies | 124 view(s)
• Yesterday, 07:40 AM
First step - simplify e^ln(x) = ?? Second step - What is the domain of the expression above? continue....
6 replies | 126 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 | 126 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 | 61 view(s)
• 05-20-2018, 01:32 PM
7 replies | 204 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 | 94 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 | 135 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 | 200 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 | 91 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 | 89 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 | 398 view(s)
• 05-19-2018, 12:32 PM
Send me your old user ID. I'll see what I can do.
10 replies | 398 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 | 306 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 | 398 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 | 200 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 | 216 view(s)
• 05-18-2018, 07:40 AM
Do you know the meaning of those symbols? What does your class-notes say?
2 replies | 121 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 | 197 view(s)
• 05-18-2018, 07:28 AM
Using MS-excel and matrix inversion, I get: x = 3.62069 y = 0.724138
3 replies | 135 view(s)
• 05-17-2018, 08:35 PM
These types of corrections are dependant on the manufacturer. I suggest you contact them.
4 replies | 128 view(s)
• 05-17-2018, 04:10 PM
You do not need to use spherical co-ordinates. Consider a disk at a distance Z from the origin (center) with a thickness dz (made by slicing...
2 replies | 85 view(s)
• 05-17-2018, 03:59 PM
What cubic feet * $0.40/100 cubic feet = ($9.38 - $6.50) + 1,200 cubic feet? ..... This equation is incorrect It is dimensionally incorrect - as... 12 replies | 415 view(s) • 05-17-2018, 03:53 PM After$12 changing hand - we know that: - = 10 - = 10 = + 10 continue.....
4 replies | 207 view(s)
• 05-17-2018, 03:32 PM
2 replies | 63 view(s)
• 05-17-2018, 03:30 PM
It looks like gibberish on my screen .....
2 replies | 99 view(s)
• 05-17-2018, 03:28 PM
I prime number above 5, cannot have 2, 4, 6, 8 or 0 at the unit digit. It cannot have 5 either. Now what.....
8 replies | 216 view(s)
• 05-17-2018, 09:23 AM
No - it came from: (a + b)2 = a2 + b2 + 2*a*b
4 replies | 149 view(s)
• 05-17-2018, 09:17 AM
Please share your work with us - so that we assist you properly.
4 replies | 97 view(s)
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