Register
Help
Remember Me?
What's New?
Activity Stream
New Posts
New Events
Mark Forums Read
Forum
Math Lessons by Subject
Calculators/Solvers
Advanced Search
Home
Activity Stream
If this is your first visit, be sure to check out the
FAQ
by clicking the link above. You may have to
register
before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.
Activity Stream
Filter
Sort By
Time
Show
Recent
Recent
Popular
Popular
Anytime
Anytime
Last 7 Days
Last 7 Days
Last 30 Days
Last 30 Days
All
All
Photos
Photos
Forum
Forums
Filter by:
Popular
Clear All
New Activity (
)
Please reload this page to view the 200+ new activity items that have been created.
Older Activity
Yesterday,
09:15 PM
ucanbizon
started a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
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 +...
see more
8 replies | 102 view(s)
Yesterday,
09:08 PM
ammelton1990
started a thread
Word problems. I am not sure what level of math the problem is.
in
Arithmetic
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...
see more
4 replies | 99 view(s)
Today,
02:30 AM
noobishnoob
started a thread
Limit of this series?
in
Calculus
How do I find the limit of this series
see more
3 replies | 62 view(s)
Yesterday,
04:01 PM
brigitte
started a thread
Dimension of the subspace T of HomV
in
Intermediate/Advanced Algebra
L<V is a subspace of vector space V. T is a set of all linear maps from HomV (f : V->V, f is linear map) for which the restriction f|L is a zero map....
see more
2 replies | 53 view(s)
Yesterday,
07:31 PM
paiges
started a thread
Need help with IA Correlation.
in
Probability / Statistics
Hello! I hope I can provide a clear explanation of what I am trying to do. I am working on my IB Math Studies' IA. I have decided on the topic: Is...
see more
2 replies | 40 view(s)
Yesterday,
08:58 PM
ChrisHuey
started a thread
Local Error: Euler/Modified Euler - moved
in
Differential Equations
Hi All, I know that it I substitute theta = 0, I get Euler method. If I substitute theta = 1/2, I get Crank-Nicholson. I know this means that...
see more
1 replies | 48 view(s)
Today,
02:50 PM
Dr.Peterson
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
Another way to think of this one is to divide numerator and denominator by x: \displaystyle\lim_{x \to \infty}\frac{\sqrt{2-8x^3}}{4+7x} = \lim_{x...
see more
8 replies | 121 view(s)
Today,
02:38 PM
Dr.Peterson
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
Let's first rewrite the equations using a more typical form for circles; note that A and F are the squares of the radii of the circles, which I'll...
see more
8 replies | 102 view(s)
Today,
01:48 PM
Denis
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
Hmmm...looks like the circles disappear with a MandrakePouff after the subtraction step :p
see more
8 replies | 102 view(s)
Today,
01:46 PM
Bob Brown MSEE
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
An expression for x or y is pages long. However a specific numerical solution is easily obtained by graphing the two circles and reading the...
see more
8 replies | 102 view(s)
Today,
01:31 PM
j-astron
replied to a thread
Need help with IA Correlation.
in
Probability / Statistics
Yeah a cool thing I just thought of is that you can consider the entire set of students you surveyed to be the population. That gives you a...
see more
2 replies | 40 view(s)
Today,
01:18 PM
j-astron
replied to a thread
Need help with IA Correlation.
in
Probability / Statistics
Hi paiges, welcome to the forum! The correlation coefficient "just for freshman" makes no sense, because you've kept grade level fixed and are...
see more
2 replies | 40 view(s)
Today,
12:47 PM
sinx
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
what are you trying to find? "I want to calculate x and y values" do you mean you want to calculate common x and y values, i.e. the intersection of...
see more
8 replies | 102 view(s)
Today,
12:43 PM
j-astron
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
I tried it out with actual numbers for circles that I know intersect at two points. I didn't want to work the algebra all the way through, but I ...
see more
8 replies | 102 view(s)
Today,
12:10 PM
doughishere
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
because ultimately i know what i need to do i just dont know how to do it. I think thats the problem. I dont know how to factor out the x from the...
see more
8 replies | 121 view(s)
Today,
11:31 AM
Jomo
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
Quick way or not, even you noted that what you factored out did not reduce to 1. Why not? You did not factor out the same thing. You knew it had to...
see more
8 replies | 121 view(s)
Today,
11:17 AM
doughishere
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
will do. Thanks. This mental error is another silly mistake...I know i have solved problems like this at least a dozen times. normally i would...
see more
8 replies | 121 view(s)
Today,
10:54 AM
Jomo
replied to a thread
what is the integral of 2^(2x)? need help tonight, exam is tomorrow
in
Calculus
You can check it yourself. Just take the derivative of (1/2)e2x+2x+C and see if you get back the intergrand (the function you were supposed to...
see more
10 replies | 247 view(s)
Today,
10:44 AM
Jomo
replied to a thread
Limit of this series?
in
Calculus
So the series has the sign oscillating. Forget about that for a moment. What is happening to n/(n2+1) as n goes to infinity. If it goes to real...
see more
3 replies | 62 view(s)
Today,
10:35 AM
Jomo
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
Well you did not live up to what you said you'll do. You did not factor out the same from the numerator and denominator! In the numerator you...
see more
8 replies | 121 view(s)
Today,
10:26 AM
Jomo
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
Denis, wait a minute. I am not exactly saying you're wrong (although I'd love to) but I do have a problem (actually many). You have the equation of...
see more
8 replies | 102 view(s)
Today,
09:14 AM
Denis
replied to a thread
2 equations and 2 unknown seemed easy to solve but not.
in
Intermediate/Advanced Algebra
Changing your equations to (same thing!): (a-x)^2 + (b-y)^2 = u (c-x)^2 + (d-y)^2 = v Expand: a^2 - 2ax + x^2 + b^2 - 2by + y^2 = u c^2 - 2cx +...
see more
8 replies | 102 view(s)
Today,
08:26 AM
doughishere
replied to a thread
Limits - split from Limits at Infinity: lim[x->-infty](1-4*cbrt[x^2])/(9+10x) = ...
in
Calculus
\frac{\sqrt{2-8x^3}}{4+7x} For this problem, were basically suposed to factor out the largest power of x that is in the denominator from both...
see more
8 replies | 121 view(s)
More Activity
No More Results
No Recent Activity