All Answers 358516 Answers

This does not make sense.  Sorry.

Your Welcome Melody!

Im happy you liked my post!Actually all those waterfall pics were especially for you !i was eally thinking that if you liked my post or not!

The whole next week i wont be on the forum becoz yes im going for something fun!Actually im going to my grandmothers place for an upcoming festival which is on 29thJuly and all my cousins and all are going to be there so its all going to be a lot fun!Im really excited for it!

And yes if ever you get a chance you should visit these waterfalls !its really enjoyable!

And i'll too miss you all very much but on my last day on the forum i'll surely leave a bye!

Thanks Rosala,

I really enjoyed this post.

Of the funny ones I liked the' Stupid bird' and the "Feed the cat" ones best.

I was laughing out loud for real.  I'm a dinosaur with a good sense of humour.  lol

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Your scenery pics were beautiful.  That castle in Germany all covered in snow looked like something straight out of Narnia.  Scenes like that have a magical quality don't they?

The Shivanasamundra Falls in Karnataka are beautiful.  That must go on my bucket list.  I want to see them one day!

Thank you for sharing all these with us.  Thumbs up from me.  

We will miss you next week. I hope that you are going somewhere fun.

Thank you Melody!

Here's a graph over a section of the domain and range.

Can you figure it out using this?

I think that would be good too!

It was a terrific answer.

Perhaps this page will help you.

Thank you for that very comprehensive answer Alan. 

f(x) = x^4 - 3x^2

When you find the first derivative you are really finding the gradient of the tangent to the curve at any specific x value.

This is an extremely important concept for you to assimilate!

$$\\f(x)=x^4-3x^2\\\\
f'(x)=4x^3-6x$$

That is it.  f'(x) will give you the value of the gradient to the curve for any specific x value!

Good work Rosala.

You have not really given enough info to answer all these questions.

The diameter is 20m the radius is half the diameter.

the maximum height is 20m

the minimum height is 0m (not really but close ehough)

You need to give more information for the rest.

Great pictures here.  Thanks anonymous.

I am confused by the question.  A segment has an area and it has a circumference but it does not have a length.  So what is it that you really wanted?

Ninja, I love all these circle definitions. do you think that they should make there way into one of your threads?  I'm not sure which one.  Umm  I guess if you reference the info post directly it can go straight inot the reference post.  What do you think?

If you click on the title of the post that you want (rather than the thread) then you will reference directly to THAT post.

Thanks

My thanks to both of you. 

This is a very basic trig graph.  You need to memorise it.   

so the answer 2 this 1 would be transitive?

Don’t be so amazed, Melody. That happens every once in a while. LOL   Ditto!

...the M1 and F1 should still switch—shouldn’t they?   M1 must always stay in the same place, otherwise the result is the equivalent of a rotation of one of the other arrangements.

One thing about hyper-geometric distributions, they hyper-stretch one's brain.  Hear hear!  That's why I like to draw pictures where possible!

Zegroes is right  - up until he said it has already been solved.  

It has not been solved bedcause there is nothing to solve.  It is just a formula. (A famous one)

$${\mathtt{E}} = {{\mathtt{mc}}}^{{\mathtt{2}}}$$

Energy =mass * (speed of light)²

Thanks Ninja and DS,

If you want to know dollars per gallon all you need to know is that per means divide

so it has to be 13.60/15   dollars per gallon.

This one is straight forward but if you make good use of the units you can do some very difficult rate problems easily.

It also extends to chain rule in calculus.   

Thanks Ninja and Kitty,

You both give superb answers every time.  

I will admit that Ninja took the edge this time but your answer was really good too Kitty.

Thank you.

Don’t be so amazed, Melody. That happen every once in a while. LOL

My answer to Melody is:

Without the minus 1, the first set would be counted twice. Consider after each “main” permutation the couples are switched. This is a binary switch, and is demonstrable by using 5 coins. Start with all heads up then flip each in sequence on the tenth sequence you have returned to the beginning –all heads up. I’m still not sure if all the combined permutations are unique.

Considering Alan’s graphic I need to study this more.

The original permutation formula 4!*((5*2)-1)=216 should allow for all defined permutations, including reflections, where the only restriction is couples sit next to each other.

I need to study your graphic for awhile. One note is the M1 and F1 do not switch, where they would using the above formula. Even with the restriction of reflection only, the M1 and F1 should still switch—shouldn’t they?

This is curious. . . . We know the (n-1)! for the couples placements is correct, so question is the counting of the “sub- permutation” where the couples switch places. I may run computer simulations to examine the uniqueness of the outcomes. The formula I offered may only work in certain situations.

One thing about hyper-geometric distributions, they hyper-stretch one's brain.

tues 22/7/14     wed 23/7

I want to work on this one some more.

Your Welcome heureka!

(i hope someday i become like u)

Thank you Melody,

thank you rosala

Morgan Tud contributed this thread a while back.

Thank you Kitty.  How pretty, and informative is that!