# Activity Stream

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• 03-13-2018, 12:47 PM
If 2^x = 10, here how to calculate the value of 'x'?
36 replies | 716 view(s)
• 03-13-2018, 05:49 PM
If f(x) = 2x-5x^2 and g(x) = 5x+2, what is f(4)? Possible answers include -2376, -1584, -362, -50, or none of these.
16 replies | 250 view(s)
• 03-14-2018, 05:01 PM
Hello, I hope you can help me, I'm trying to Fully Factorise this Expression. 8ax + 40cx + 3a +18c My result is below 8ax + 40cx + 3a +...
13 replies | 335 view(s)
• 03-13-2018, 09:53 PM
How to calculate the value of 'x', If 16^x = 2?
12 replies | 281 view(s)
• 03-13-2018, 06:14 AM
Hello, I need assistance with this following question: Factorise fully x4- x2 + 1 by completing the square
9 replies | 278 view(s)
• 03-13-2018, 10:49 AM
So my teachers notes say: 2^(2x) = 2^(2x) / 2Ln(2) why is it 2 times ln(2) instead of just ln(2)? thank you
10 replies | 241 view(s)
• 03-12-2018, 04:26 PM
2. Consider the following function: . . .\displaystyle F(x)\, =\, \int_a^x\, f(t)\, dt\, =\, x^3\, -\, 2x^2\, +\, x\, -\, a,\quad (a\, \neq\, 0) ...
10 replies | 304 view(s)
• 03-15-2018, 06:59 AM
Dear All, For a number of reasons my mathematical skills are very poor. I do however want to compensate for this deficiency in my education by...
7 replies | 239 view(s)
• 03-12-2018, 10:31 PM
I've been stuck on this specific problem, "John's Pizzeria offers 3 choices of crust, 3 choices of cheese and 10 choices of toppings. If topping...
7 replies | 109 view(s)
• 03-14-2018, 05:38 PM
Does 2 to the power of root 2 mean anything? It doesn't make any sense to me when thinking about basic indices?
7 replies | 196 view(s)
• Yesterday, 09:15 PM
Hi, I hope I am at the correct part of this forum to ask following question. I have 2 equations with two unkown (x and y) A=(b-x)^2 +...
5 replies | 84 view(s)
• 03-13-2018, 07:04 AM
a) Differentiate the following products with respect to x. . . .\mbox{i. }\, y\, =\, x^2\, e^{2x} . . .\mbox{ii. }\, y\, =\, x^2\, \ln(x) b)...
5 replies | 152 view(s)
• 03-11-2018, 07:16 PM
\int_{0}^{2\pi } \left | sin(\frac{n\theta -\theta }{2}) \right |d\theta How can we solve this integral without using correction factors thing...
7 replies | 197 view(s)
• 03-14-2018, 06:23 PM
I'm not understanding how to approach this problem: An object (which we will call a "blade" for lack of a better word) is obtained as follows....
7 replies | 187 view(s)
• 03-11-2018, 08:29 PM
T is the matrix \begin{bmatrix} 2q &0 \\ p& p \end{bmatrix} They asked to find the determinant of T which I did and that is 2pq. Then...
7 replies | 122 view(s)
• Yesterday, 01:44 PM
Another question. Im pretty sure this is wrong also. Edit: Ok this is really difficult And excessively time consuming translating the latex...
7 replies | 108 view(s)
• 03-12-2018, 08:49 PM
I need help with the last page, I have been trying to do it for my spring break, but I just don't get it. A temperature probe is placed in a cup...
4 replies | 269 view(s)
• 03-16-2018, 01:23 PM
So I'm asked to calculate the triple integral \iiint_{B} x^2 y^2 z^2 dV for a region B defined as 0 <=x<=y<=z<=1. My setup is therefore ...
5 replies | 159 view(s)
• 03-14-2018, 12:41 PM
Im not sure if im pulling this out of my a** or what...im not confident in this answer. Is this right? Problem 11: Find the limit, as x\,...
5 replies | 136 view(s)
• 03-16-2018, 12:15 PM
Hello! I'm trying to show that one function is equal to another but I'm not sure how to peform the operations to show that they are equal. I'm...
5 replies | 100 view(s)
• 03-15-2018, 09:28 AM
Hi, I need to help my step son with his exams, I can answer most of the questions except this selection - can anyone help me? 1. n is an integer ...
3 replies | 186 view(s)
• 03-16-2018, 10:57 PM
Hi, I seem to be having a bit of trouble with this question I came up against. I seem to be lacking in my intuition when it comes to u...
4 replies | 78 view(s)
• 03-15-2018, 06:39 PM
Hi, I'm new and I don't know if this the correct place to send my problem. Any way ,please solve this prob. * Find the locus of points (x,y,z)...
3 replies | 146 view(s)
• 03-12-2018, 08:01 PM
epilog ?
5 replies | 132 view(s)
• 03-14-2018, 11:01 AM
Hello. I'm working on a project, where I'm trying to locate the position of a sound source. I've got an array of 4 microphones, 3 in a triangle and...
3 replies | 131 view(s)
• 03-11-2018, 09:41 PM
The problem is: Find the slope of the tangent line at x = 30 degrees for f(x) = sin(x). Using the derivatives formula, I got: lim h->0 = /h ...
3 replies | 111 view(s)
• 03-15-2018, 12:58 PM
Hi guys, First time poster. I have a query from my boss who wants this information: per quarter these are the participants: Q1 2017 –...
4 replies | 100 view(s)
• Yesterday, 09:08 PM
I do not know how to start to solve this. My car speedometer measures 5 MPH more than the speed at which I am actually traveling. If my car...
4 replies | 93 view(s)
• 03-16-2018, 11:19 AM
Question is find the value of 'b' in the equation: (x+b)(x-1)=x2+3x-4 I reduced the equation as follows: x2-x+bx-b=x2+3x-4 x2-x+bx-b=x2+3x-4...
4 replies | 76 view(s)
• Yesterday, 12:22 PM
Hi. I've been having some problems with this question. The game begins with n people on an island. The people are numbered 1 through n. Each day,...
4 replies | 73 view(s)
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