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:
Last 7 Days
Clear All
New Activity (
)
Please reload this page to view the 200+ new activity items that have been created.
Older Activity
Yesterday,
11:29 PM
Dr.Peterson
replied to a thread
I do not understand how to interpret this statement/syntax on linear transformations
in
Intermediate/Advanced Algebra
I suspect that you are expecting some different syntax, so you don't see what it is saying quite clearly: When it says, f(1,0) = (a,c), that means...
see more
1 replies | 13 view(s)
Yesterday,
10:56 PM
wduk
started a thread
I do not understand how to interpret this statement/syntax on linear transformations
in
Intermediate/Advanced Algebra
So this book has: If f is a linear transformation, and f(1,0) = (a,c) and f(0,1) = (b,d) Then the matrix of f is: a b c d
see more
1 replies | 13 view(s)
Yesterday,
10:28 PM
yma16
replied to a thread
Find angle B in circle. Angle B rests on inner side of outer line of circle.
in
Geometry and Trig
the angle formed by the new line and the secant is half of 110. a is half of 90. So you have 55+45=100. The rest is b on the arrow line, which has...
see more
3 replies | 35 view(s)
Yesterday,
09:53 PM
lookagain
replied to a thread
e^pi or pi^e
in
Intermediate/Advanced Algebra
e^x \ge x + 1. e^x = x + 1 \ \ only where x = 0.
see more
10 replies | 111 view(s)
Yesterday,
09:40 PM
tkhunny
replied to a thread
Trying to help my neice with Algebra..PLEASE HELP
in
News
For starters, we probably need a better description for f(x). Anyway, if we want f(x) = 60, simply do the substitution. 60 = {full expression...
see more
1 replies | 8 view(s)
Yesterday,
08:51 PM
lev888
replied to a thread
Find angle B in circle. Angle B rests on inner side of outer line of circle.
in
Geometry and Trig
Draw the radius to the vertex of the angle in question. You'll get 2 triangles. If you can calculate the angles of one of them you'll be almost there.
see more
3 replies | 35 view(s)
Yesterday,
08:37 PM
Dr.Peterson
replied to a thread
Find angle B in circle. Angle B rests on inner side of outer line of circle.
in
Geometry and Trig
Surely there was some sort of instruction given in words. I can assume that the dot in the middle is the center of the circle, and the ray is meant...
see more
3 replies | 35 view(s)
Yesterday,
07:02 PM
Jomo
replied to a thread
e^pi or pi^e
in
Intermediate/Advanced Algebra
e^x > x+1. Now let x = pi/e - 1...
see more
10 replies | 111 view(s)
Yesterday,
06:58 PM
DrGore
started a thread
Find angle B in circle. Angle B rests on inner side of outer line of circle.
in
Geometry and Trig
Okay, that's a sorta confusing title but I'm tired and can't think of anything better right now. I know that the length of the arc between angle...
see more
3 replies | 35 view(s)
Yesterday,
06:56 PM
Jomo
replied to a thread
e^pi or pi^e
in
Intermediate/Advanced Algebra
It is great that you are playing with different functions or at least one function. Why do you think this function will help? Please let us know. ...
see more
10 replies | 111 view(s)
Yesterday,
06:48 PM
Jomo
replied to a thread
File 13 stuff?
in
Math Odds & Ends
And I thought you were a wiz. You're quite impressive but not quite a wiz yet, but you're getting there.
see more
8 replies | 106 view(s)
Yesterday,
06:30 PM
student0928
started a thread
Trying to help my neice with Algebra..PLEASE HELP
in
News
I'm old school and didn't learn algebra the way kids do it now. Can anyone help me with this? Given f(x)=12x+6-18x Find x if f(x)=-60 I m...
see more
1 replies | 8 view(s)
Yesterday,
05:20 PM
englewood
replied to a thread
Factorise expression HELP: Does 8ax + 40cx + 3a +18c equal (8x + 3)(a + c) ?
in
Beginning Algebra
Thank you for your help and information provided.
see more
14 replies | 424 view(s)
Yesterday,
05:17 PM
apple2357
replied to a thread
e^pi or pi^e
in
Intermediate/Advanced Algebra
I have started playing with y=1/x lnx and thinking about the max point. I think there is something in this too. It feels simpler than the video.
see more
10 replies | 111 view(s)
Yesterday,
05:14 PM
apple2357
replied to a thread
e^pi or pi^e
in
Intermediate/Advanced Algebra
thanks!
see more
10 replies | 111 view(s)
Yesterday,
05:06 PM
Dr.Peterson
replied to a thread
Vector Parameters Problem
in
Intermediate/Advanced Algebra
First, I think all you are saying about "not a function" is that you don't intend x(t) to look like function notation, but like a subscript....
see more
3 replies | 51 view(s)
Yesterday,
04:39 PM
tkhunny
replied to a thread
Model Kit Scale
in
Arithmetic
Personally, I don't like any of those so far presented. In the linear scale, Model:Reality::1:72
see more
3 replies | 61 view(s)
Yesterday,
03:25 PM
Denis
replied to a thread
File 13 stuff?
in
Math Odds & Ends
Got to cheat...1 equation, 4 variables 8-)
see more
8 replies | 106 view(s)
Yesterday,
02:38 PM
Jomo
replied to a thread
File 13 stuff?
in
Math Odds & Ends
So you cheated?
see more
8 replies | 106 view(s)
Yesterday,
02:27 PM
Jomo
replied to a thread
Vector Parameters Problem
in
Intermediate/Advanced Algebra
I'll try to give a hint. 1st of all why do you say that xt = 3t + 3 is not a function of t? In order to know what x equals you need to know what 3t +...
see more
3 replies | 51 view(s)
Yesterday,
11:10 AM
lev888
replied to a thread
Help Please!
in
Probability / Statistics
Round 1: you get 8400. Round 2: 8400*(1/2) Round 3: 8400*(1/2)2 etc. The total looks like the sum of an infinite geometric series....
see more
1 replies | 43 view(s)
Yesterday,
09:06 AM
Subhotosh Khan
replied to a thread
Model Kit Scale
in
Arithmetic
Problem can be more confusing! Suppose a cube of dimensions 72" x 72" x 72" is modelled with a cube of 1" x 1" x 1" So the volume of the model...
see more
3 replies | 61 view(s)
Yesterday,
08:53 AM
ronhollenbeck
replied to a thread
sin and cos formula for circle
in
Arithmetic
Thanks Dr.Peterson, y=r*sin(arcos(x/r)) works. I'm using the graphing calculator at desmos.com/calculator. I wanted to know the formula just to...
see more
6 replies | 115 view(s)
Yesterday,
08:34 AM
ronhollenbeck
replied to a thread
sin and cos formula for circle
in
Arithmetic
I'm using the graphing calculator at desmos.com/calculator. I knew there was a sin/cos formula for a semicircle but couldn't remember it. I just...
see more
6 replies | 115 view(s)
Yesterday,
08:30 AM
Subhotosh Khan
replied to a thread
Simultaneous Equations
in
Intermediate/Advanced Algebra
What are your thoughts? Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll...
see more
2 replies | 44 view(s)
Yesterday,
08:28 AM
Subhotosh Khan
replied to a thread
Vector Parameters Problem
in
Intermediate/Advanced Algebra
Please share with us the work you have done without using vectors.
see more
3 replies | 51 view(s)
More Activity
No More Results
No Recent Activity