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tkhunny
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tkhunny
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Join Date
04-12-2005
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Yesterday
11:19 PM
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Yesterday,
11:19 PM
tkhunny
replied to a thread
serious problem help needed: there are 400 llamas and alpacas in total....
in
Arithmetic
I don't disagree with your assessment. I do disagree with the pedagogical approach. Always have. Algebra sooner. No need to hide it until...
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16 replies | 446 view(s)
Yesterday,
09:32 PM
tkhunny
replied to a thread
Equation of a tangent line
in
Calculus
You have it right. Why do you doubt? y = f(x) \dfrac{d}{dx}y = f'(x) = y' \dfrac{d}{dx}y^{2} = 2\cdot f(x) \cdot f'(x) = 2yy' The...
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2 replies | 47 view(s)
Yesterday,
09:25 PM
tkhunny
replied to a thread
Is this possible?
in
Beginning Algebra
How did you pick which solution for x that you would use? It doesn't matter. I just wondered. Please apply "Completing the Square" to the...
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3 replies | 52 view(s)
Yesterday,
09:18 PM
tkhunny
replied to a thread
tricky algebra: With a fair coin, my opponent flips 50 times, with fair odds, ie,...
in
Probability / Statistics
You earned my respect by simply answering my questions. 1) If you lose 15 in a row, you will lose only 15 - one each round. 2) If you win 15 in a...
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12 replies | 421 view(s)
Yesterday,
05:42 PM
tkhunny
replied to a thread
I need help with the quadratic formula
in
Intermediate/Advanced Algebra
Again, you didn't answer my question. To sum up: 1) Opinions vary. 2) \pm is a little squishy, or opinions wouldn't vary. When one writes...
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12 replies | 272 view(s)
Yesterday,
05:11 PM
tkhunny
replied to a thread
I need help with the quadratic formula
in
Intermediate/Advanced Algebra
Nonresponsive. You made up your own question. We're only talking about one solution. Said another way: If you entered "6+7=" in your AOS...
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12 replies | 272 view(s)
Yesterday,
01:40 PM
tkhunny
replied to a thread
tricky algebra: With a fair coin, my opponent flips 50 times, with fair odds, ie,...
in
Probability / Statistics
Note also, that you may be assuming one flip has ANYTHING to do with some other flip. If the flips are dependent, then you should bet LESS after...
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12 replies | 421 view(s)
Yesterday,
01:02 PM
tkhunny
replied to a thread
tricky algebra: With a fair coin, my opponent flips 50 times, with fair odds, ie,...
in
Probability / Statistics
There are only 32,768 cases for 15 tosses. Spreadsheets work. 1) Are you betting on each flip? 2) Do you reset back to the initial amount on a...
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12 replies | 421 view(s)
Yesterday,
12:56 PM
tkhunny
replied to a thread
serious problem help needed: there are 400 llamas and alpacas in total....
in
Arithmetic
Well, that's the way I always approached it when I was a child. Of course, I was pretty much a freak, as far as that goes. :-)
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16 replies | 446 view(s)
Yesterday,
09:11 AM
tkhunny
replied to a thread
Gambling Phrase: "$5.00 will get you $10.00 if she is late again for work."
in
Arithmetic
That is right. Gambling is deceptive. One might speak of the wager as "get you ten", when, as you noticed, you get only five. It is a deception...
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15 replies | 390 view(s)
Yesterday,
07:52 AM
tkhunny
replied to a thread
Problem w/ induction? How does 1/2k(6k^2 + 3k − 1) + [3(k+1)-1]^2 become...?
in
Intermediate/Advanced Algebra
It's nice if you can get it in the same form, but it is unnecessary. Just prove the two expressions equivalent. Maybe expand both?
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2 replies | 85 view(s)
11-20-2017,
10:39 PM
tkhunny
replied to a thread
Difference in Growth Functions y = A*(1+r)^t and P(t) = Po(e^(rt))
in
Intermediate/Advanced Algebra
Some presentations refuse to accept any base but 'e'. Read my signature. That's how I feel about that.
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2 replies | 82 view(s)
11-20-2017,
06:23 PM
tkhunny
replied to a thread
I need help with the quadratic formula
in
Intermediate/Advanced Algebra
"or" excessively defines the situation when a single root is considered separately. \dfrac{-b+\sqrt{b^{2}-4ac}}{2a} =...
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12 replies | 272 view(s)
11-20-2017,
06:08 PM
tkhunny
replied to a thread
Pythagoras' theorem questions
in
Geometry and Trig
1) Yes, a right angle altitude leads to similarity. What does that do for you?
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3 replies | 173 view(s)
11-20-2017,
06:05 PM
tkhunny
replied to a thread
Finding the first term/common difference of an arithmetic series with 2 sums
in
Intermediate/Advanced Algebra
What you are saying is that you have no idea how the formula works. Please tell me what S_{2} means.
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4 replies | 99 view(s)
11-20-2017,
03:08 PM
tkhunny
replied to a thread
Solving a cubic equation: 2x3 - 3x - 5
in
Intermediate/Advanced Algebra
Synthetic Division absolutely does NOT capture only Rational Roots. It will find ALL of them, no matter how many or what type. You do know that...
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12 replies | 603 view(s)
11-20-2017,
12:38 PM
tkhunny
replied to a thread
I need help with the quadratic formula
in
Intermediate/Advanced Algebra
... depending on the Domain, it could be inclusive or exclusive, as far as "or" goes. ...still, as state above, one of those "plus or minus" has to...
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12 replies | 272 view(s)
11-20-2017,
12:34 PM
tkhunny
replied to a thread
serious problem help needed: there are 400 llamas and alpacas in total....
in
Arithmetic
Well-stated! Q: "Why do I need algebra? I'll never use it!" A: Yes, you will. Granted, you may not recognize it. Better to learn the...
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16 replies | 446 view(s)
11-20-2017,
12:31 PM
tkhunny
replied to a thread
Gambling Phrase: "$5.00 will get you $10.00 if she is late again for work."
in
Arithmetic
Agreed. ...or "I'm willing to state, with some confidence, that ____________ will happen. Are you willing to state the complimentary outcome with...
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15 replies | 390 view(s)
11-20-2017,
10:07 AM
tkhunny
replied to a thread
Gambling Phrase: "$5.00 will get you $10.00 if she is late again for work."
in
Arithmetic
Still no. He risked only $5. $5 of the $10 winnings came from you. Your scenario expresses even greater confidence in winning the bet. He offers...
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15 replies | 390 view(s)
11-20-2017,
09:50 AM
tkhunny
replied to a thread
Gambling Phrase: "$5.00 will get you $10.00 if she is late again for work."
in
Arithmetic
"five..." - You wager $5. It is gone. It is the price of playing the game. "...will get you $10" - $10 comes your way if you win. There is...
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15 replies | 390 view(s)
11-19-2017,
08:26 PM
tkhunny
replied to a thread
Yr 5 maths - is there a mistake in the question?
in
Arithmetic
Maybe someone tore some pages out of a nonfiction book. I have to agree with your assessment. Incorrect question.
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3 replies | 122 view(s)
11-19-2017,
08:19 PM
tkhunny
replied to a thread
I need help with the quadratic formula
in
Intermediate/Advanced Algebra
There is no definition of \pm. There is only usage that we all play like we understand. They can't be exactly the same unless it is squishy. ...
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12 replies | 272 view(s)
11-19-2017,
04:42 PM
tkhunny
replied to a thread
serious problem help needed: there are 400 llamas and alpacas in total....
in
Arithmetic
How many llamas were there initially? Call it something. L? How many alpacas were there initially? Call it something. A? That was about half of...
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16 replies | 446 view(s)
11-19-2017,
04:40 PM
tkhunny
replied to a thread
Solve three algebra tasks (involving composite functions and inverse functions)
in
Beginning Algebra
Why not use that composite idea to prove whether things are inverses? Find (f(g(x)) and g(f(x)).
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2 replies | 103 view(s)
11-19-2017,
04:36 PM
tkhunny
replied to a thread
My Calculus group work for University - Help Please!
in
Calculus
One at a time, please, and show your work. The first is an existence problem. Who cares exactly WHAT the solution is? We just need to now that...
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1 replies | 81 view(s)
11-19-2017,
04:33 PM
tkhunny
replied to a thread
Yr 5 maths - is there a mistake in the question?
in
Arithmetic
It is a difficult thing to translate through a third party. Whole Library: N = # of NonFiction Books F = # of Fiction Books We know that F...
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3 replies | 122 view(s)
11-19-2017,
04:28 PM
tkhunny
replied to a thread
Introduction and a math question
in
Calculus
Not much to go on. Perhaps the actual problem statement AND your best work?
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4 replies | 109 view(s)
11-19-2017,
04:25 PM
tkhunny
replied to a thread
I need help with the quadratic formula
in
Intermediate/Advanced Algebra
The method of "b^2"? Isn't this usually called "Completing the Square"? Anyway, \dfrac{-b\pm\sqrt{b^{2} - 4ac}}{2a}\;and\;\dfrac{b\pm\sqrt{b^{2}...
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12 replies | 272 view(s)
11-19-2017,
04:19 PM
tkhunny
replied to a thread
Gambling Phrase: "$5.00 will get you $10.00 if she is late again for work."
in
Arithmetic
It is a common fallacy in the personal calculation of "winning" at gambling. It sounds like your winnings are more if you forget that you wagered...
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15 replies | 390 view(s)
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About tkhunny
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About tkhunny
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Occupation:
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"Unique Answers Don't Care How You Find Them." - Many may have said it, but I hear it most from me.
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11:19 PM
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