# Activity Stream

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• Today, 11:13 AM
1/x X xy = 1/y X xy or, y = x, still I don't understand how to find the value of b if the equation is 1/T^2 = 1/T^b
5 replies | 75 view(s)
• Today, 11:12 AM
Well, yes, we can certainly be fairly certain of the solution, since this can be found online. You posted this to "Calculus". Please provide a...
1 replies | 5 view(s)
• Today, 11:08 AM
Do you mean to say?
5 replies | 75 view(s)
• Today, 11:03 AM
It's just part of the formula they gave you. Either they proved the formula (maybe in the section on induction proofs), or they just gave it to you...
2 replies | 152 view(s)
• Today, 10:53 AM
Yea that makes sense. Much appreciated!
2 replies | 90 view(s)
• Today, 09:26 AM
What they are doing is to factor out √2 / 4 from each term. Note that the way to add or subtract radical expressions is to simplify each of them,...
2 replies | 18 view(s)
• Today, 09:09 AM
The "stated" APR should be "122.07 APR COMPOUNDED MONTHLY", which results in TK's 219.80% which is the EFFECTIVE RATE. Would not be to the crooks'...
2 replies | 19 view(s)
• Today, 08:48 AM
Solve the inequality: . . . . .e^x\, -\, \ln(x)\, \leq\, \frac{e}{x} i am sure that the solution is the interval {0<x<=1}, but i need the proof.
1 replies | 5 view(s)
• Today, 07:49 AM
Apply integration by parts again on the resulting integral.
6 replies | 79 view(s)
• Today, 07:46 AM
No .... that does not work here....
6 replies | 79 view(s)
• Today, 07:40 AM
Subhotosh Khan replied to a thread algebra in Calculus
First step - simplify e^ln(x) = ?? Second step - What is the domain of the expression above? continue....
4 replies | 60 view(s)
• Today, 07:34 AM
This principle is used twice: ab + ac = a(b+c) or this bd + cd = (b+c)d In each case, it is the Distributive Property of Multiplication over...
2 replies | 18 view(s)
• Today, 07:32 AM
Of course it did. WHAT other integral?
6 replies | 79 view(s)
• Today, 07:30 AM
This is not a great question. We are not told if it is a Simple Interest loan, or otherwise. Monthly Compounding gives 219.80%. For Simple...
2 replies | 19 view(s)
• Today, 06:59 AM
Do you see that if 1/x= 1/y then x= y? If that not obvious multiply both sides of 1/x= 1/y by xy.
5 replies | 75 view(s)
• Today, 05:57 AM
j-astron thanks for the reply, now I understood pretty well. My difficulty is, for a given exercise regarding the use of discrete distribution, which...
5 replies | 254 view(s)
• Today, 01:07 AM
Thanks "Subhotosh Khan" for the help, the formula was a quick cut and paste and should have been tan(b)= v^2/(R*g) I have some notes for the basic...
2 replies | 62 view(s)
• Today, 12:26 AM
Hm. A very interesting math puzzle. At first I was completely stymied and thought maybe the trick was that there wasn't an answer. But then I...
1 replies | 40 view(s)
• Today, 12:18 AM
apologies for this simple question, but i'm confused over how: √2√3 / 4 - √2 / 4 simplifies to √2(√3 - 1) / 4 doing the subtraction myself I...
2 replies | 18 view(s)
• Today, 12:03 AM
power rule? (x^2/2y^2) + c
6 replies | 79 view(s)
• Yesterday, 11:56 PM
Given the following information I need to know how they determine the APR. An individual takes out a $260.00 loan with a$100.00 finance charge...
2 replies | 19 view(s)
• Yesterday, 11:19 PM
There are 100 people on an island; some people always tell the truth, and the others always lie. A visitor asks them, "How many of you...
1 replies | 40 view(s)
• Yesterday, 10:28 PM
you're a life saver! i had no idea you can get a function from 563. that amazed me, i got the answer! thanks for helping
2 replies | 30 view(s)
• Yesterday, 10:23 PM
Hussein Ali 99 replied to a thread algebra in Calculus
it is e^{x - \ln(x)} \le \frac{e}{x} i am sure that the solution but i need the proof.
4 replies | 60 view(s)
• Yesterday, 10:00 PM
What have you tried? where are you stuck? It is hard to help you if you do not tell us where you are stuck. I'll try to start you off. On both...
5 replies | 75 view(s)
• Yesterday, 10:00 PM
There is an obvious solution; do you see it? But were you told the value of T, or what its possible values are? (If T were 1, everything would...
5 replies | 75 view(s)
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