# Activity Stream

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• 11-19-2018, 12:40 AM
An equation of a line through (0, -2) which is parallel to the line y = -4x + 3 has what slope and y-intercept? So it started to make sense, and...
37 replies | 1612 view(s)
• 11-24-2018, 01:31 AM
Is what I've done correct, and how proceed ? x^4-5x^2+4=0 x(x^3-5x+4)=0
34 replies | 1489 view(s)
• 12-01-2018, 04:51 PM
Use exactly four 4's to form every integer from 0 to 50, using the usual operators used on similar type problems in the past. This was a challenge at...
40 replies | 1023 view(s)
• 11-26-2018, 07:42 AM
Sqrt (5-6*x)*ln(4*sqr(x)-sqr(a))=sqrt(5-6*x)*ln(2*x+a) Find all possible a when an equation has only one possible solution.
32 replies | 782 view(s)
• 12-02-2018, 04:33 AM
(Fixed) Holding back Bob takes one metal container (7)
31 replies | 943 view(s)
• 12-07-2018, 09:05 PM
Hi, I am told to solve the quadratic equation given below after plotting the function above it. 1 - x - x2 = y 2x2 - 4x + 1 = 0 But i'm...
25 replies | 732 view(s)
• 11-16-2018, 03:13 PM
Okay, I'm having the same problem on MHF. Instead of equations here all I am seeing is a bunch of icons from CodeCogs images saying "equation quota...
24 replies | 880 view(s)
• Yesterday, 10:15 AM
The question is: The numbers X, Y and Z satisfy Y^2 = XZ Find Z if X = sq.root 3 and Y = 1-sq.root 3 here's what I did so far: taking the Y...
25 replies | 238 view(s)
• 11-16-2018, 04:44 PM
Denis started a thread 2 rebus puzzles in Math Odds & Ends
t.a.b.l.e. (2 words) ballo_ (2 words)
24 replies | 632 view(s)
• 11-26-2018, 05:25 PM
Denis started a thread 2 Rebus puzzles in Math Odds & Ends
worl (4) wordd yyy (4)
25 replies | 580 view(s)
• 12-04-2018, 12:26 PM
I am trying to find an efficient way of solving cosxcos4xcos8x=1/8, 0 to 2pi, i am thinking about the product of three trig expressions and what...
20 replies | 754 view(s)
• 12-01-2018, 01:26 PM
AmyHR started a thread Where do I start in Arithmetic
I've been given a pot of money at work and been asked to split it between 7 people... 3 of them get 20% of the pot, 3 of them get 15% of the post and...
18 replies | 739 view(s)
• 11-12-2018, 08:49 AM
I don't understand how to start. Also, I'm experiencing a problem in general when doing calc where it makes sense when someone explains an issue for...
17 replies | 810 view(s)
• 11-16-2018, 04:57 PM
Having a good time, traveling 'round Montana, southern California, and Washington State's Olympic Peninsula. Have I missed a forum change, while...
16 replies | 986 view(s)
• 12-09-2018, 08:39 PM
I have been going through Robert Blixer's Introductory Algebra for College Students for the last year or so and am coming to the end of it. I wonder...
19 replies | 319 view(s)
• 11-21-2018, 05:24 PM
abcdefghijklmnopqrstuvw-yz (1) lange (1)
19 replies | 681 view(s)
• 12-03-2018, 08:21 PM
I have the following details: Q1 a) Calculate the original loan amount using the following details: Using the PV function in excel, I get...
19 replies | 384 view(s)
• 12-02-2018, 10:34 PM
I'm not even sure I'm interpreting this question properly. Q: is the set S a subspace of P3 S = { p element of P3: p'(x) + x + 1 = 0 for all x...
19 replies | 445 view(s)
• 11-19-2018, 02:22 AM
19 o'clock (2)
18 replies | 525 view(s)
• 12-01-2018, 09:30 AM
shahar started a thread clocks hands in Beginning Algebra
How many times the hour hand is exactly on the minute hand in analogical clock in period of 24 hours? The answer is maybe 25 or 24. What is the...
14 replies | 706 view(s)
• 12-07-2018, 03:36 PM
So I have this problem f(x)=x^3+x+1 and I need to find the inverse of this function.I know that you have to use differentiation but the problem is I...
15 replies | 382 view(s)
• 12-05-2018, 08:50 PM
Hi, Suppose people randomly pick a number between 0 and 1. What would be the expected number of people you would have to ask for numbers if you want...
13 replies | 635 view(s)
• 12-08-2018, 02:32 AM
Why study those reciprocals? or even the basic trig ratios? I won't use them in cooking, buying coke in 7/11, or even when I go to the bathroom. Is...
16 replies | 220 view(s)
• 12-06-2018, 05:33 AM
In nice and green valley there is a building with 4 floors. In every floor there is a quadrilateral polygons, that is have a unique property. Which...
13 replies | 619 view(s)
• 11-14-2018, 05:54 PM
And what if Chris de Burgh did pay the ferryman before he got him to the other side?
16 replies | 507 view(s)
• 11-29-2018, 05:38 PM
A square is a rectangle. Right! I think we all agree on that (although I have argued with students over that.) Is an equilateral triangle an...
13 replies | 584 view(s)
• 11-18-2018, 10:09 PM
Here's what I've done so far: I'm not sure how to proceed from here, from my understanding I've got to add a constant ?
12 replies | 714 view(s)
• 11-26-2018, 11:04 PM
This is the only sum I am unable to solve in a problem set: How many different 7-digit telephone numbers can be written if the digit 0 cannot...
13 replies | 386 view(s)
• 11-12-2018, 03:31 PM
Denis started a thread Movie crypt in Math Odds & Ends
Undercover cop in **** movie treat. (7) sorry, no e's! **** = po rn (this site is too da mn catholic!!)
14 replies | 575 view(s)
• 11-15-2018, 10:12 AM
If a regular haircut costs $5.00 in 1965, and now approximately 50 years later the same haircut costs$20.00, is this increase a 200% increase or a...
11 replies | 553 view(s)
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