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Hello,

w = - \frac{11}{3}

x = - \frac{20}{3}

y = \frac{25}{3}

z = \frac{43}{3}

\((-\frac{11}{3}*(-\frac{20}{3}))+(\frac{25}{3}*\frac{43}{3})=\frac{1295}{9}=143\frac{8}{9}=143.\overline8\)

Straight

Hour hand usually moves at  .5 degree per minute.....now it is at   1 degree per minute

Minute hand usually moves at  6 degrees per minute now moving retrograde at 3 degrees per minute

Starting at 12 o'clock as zero degrees

minute hand   position = 360 - 3 * m

hour hand      position  = 1 * m

equate them    360 - 3m = m

                         360 = 4m

                               m = 90   minutes   when they meet       which will   13:30  correct time

                                      ( however , when they meet it will show ~ 15:15 )

The above is not a long text. It may seem that way to you because you are still learning how to read and write Standard English.  You have a long way to go... Your communication skills are so poor and chaotic that is seems intentional. They are much more worser than your math skills. 

Understanding what you write often requires a large amount of effort. None of the AI assisted babble translators offer much help. I am marginally successful (or not) to a point because I have extensive, practiced skills in translating the dialects of moron, imbecile, and idiot. Even so, it is still a time consuming chore.   If you could consistently maintain at least a minimum moron-level of communication, it would be easier...   Not easy, just easier. 

Keep in mind that verbose is NOT the same as articulate.  Using made-up “English” words, whether you make them up yourself or they were taught to you, require several uses in various contexts before they can be translated consistently.  “Onliest” is one you’ve used in a post. If you use this a few more times, I should be able to translate this word in context.   

Here, you might be able to understand this more better:

It is not for me to demand English properly from writing by you. But I sugest now understanding without this is not completely possible without most all the possibilities examined.  So if you can give rise to more better possibilities, then my not demanding English properly from writing by you at the moment will require less demanding reporting when moments like this are in the future maybe. I’m not writing the new rules; I’m just explaining the rules that will help stand your writing more better comprehensible. Or, 

GA

(\(7+3=10\)),

the result is 10.

Straight

There are 58 possible values of x.

There are 20 students in the group.

The area of the trapezoid is 4*sqrt(3).

Answer:1/21

We have 2r, 3b, and 4g, marbles(r,b, and g, standing for red, blue, and green.)

The chance that we get a red marble first is 2/9 since the total amount of marbles is 9.

After getting our first marble we now have only 8 left so the chance that we draw a blue marble would be 3/8.

And the chance that we draw a green marble is now 4/7.

To find the probability of drawing all these marbles we have to multiply them by each other:

2/9*3/8*4/7=1/21

And drawing these marbles in a different order, for example, green, red then blue still gives:

4/9*2/8*3/7=1/21

Since (2)²=4 and (2²)=4, subtracting them gives 0. Meaning no difference. 

Answer:18

Amount of lollipops Ricky has=R

Amount of lollipops Terry has=T

Amount of lollipops Jake has=J

R=J5

T=J2

R+T+J=72

J5+J2+J=72

J8=72

J=9
 

R=(9)5=45

T=(9)2=18

J=9=9

Check:

45+18+9=72

12:45

Hello,

the difference beetween (\(2^2\)) and (\(2^2\)) is 0 because (\(2^2-2^2\)) is 0.

(If you subtract and the minuend and subtrahend are the same,

the result is ALWAYS 0.) 

Straight

Nein, ich kenne nur ein paar Wörte.

Oh no please not a long text

For sure, Presh Talwalkar is a skilled mathematician and articulate teacher of the subject, but the arbitrary pile of BS in the introduction means he was asleep at the calculator when he made this video.

The first thing that came to mind while watching the video is why is the square root allowed? If the cube root is not allowed because it introduces a three (3) the square root should not be allowed because it introduces a two (2).  “...You cannot introduce any new digits, so the cube root is not allowed because it involves the digit (3).”  (In any case, the last time I checked, the cube root function is not a digit, so the reason is a complete non sequitur.)

I noted a comment posted thirty months after the introduction of the video making this point.  The 479 responses both agree and disagree that the square root introduces a (2). 

I might assume the arbitrary allowance for square roots in solving four of these problems comes from Brazilian math theory, which isn’t always consistent. Dragonlance hilariously points this out:

Hello Melody,

I am German and I heard that you can speak German?

Straight

there is a spanish forum.

You can jump into it yourself.

Go to the bottom of a page and you can see the language forum choices

Spanish is the third one  ....es

You can hyperlink into it from there.

You have to re log in though.

the private messages are all in the same place I think.

Sometimes I get private messages sent from the other forums.  At least I think I do.

I think only the English and German forums are really attended properly.

Last time I looked, which was some time ago, there were not really any answerers on the other forums.

Sometimes I mistakes and a robot can't make them or is not responding.

Straight

Hello Melody,

sorry, but what? B can be 0

because A8 * 0 is 0 it ends with 0 and that's what we're needing.

For example A could be 5, then 58 * 30 is 1740 and this number ends with a zero,

no matter what digit A is the result ALWAYS ends with 0.

Straight

I do not know why that happened.

Often when posts have a web address in them they are automatically hidden and a moderator may have to unhide it.

Maybe that is what happened.

I am constantly making posts visible, I do not remember if I had to with this one or not.

Are you a robot?  Sometimes I wish I was one. I am sure they are much more efficient at many things :)

Hello Melody,

maybe there is a Spanish forum for this website,

why doesn't he ask there any questions?

Straight

You are a moderator, right?

Yes, but if I am publishing a question or an answer,

why don't I have to confirm that i am a robot anymore, maybe i am one? :)

Straight

como calculo las potencias con distinta base y distinto exponente?

How do I calculate the powers with different base and different exponent?

What you're asking is not very clear.  Maybe you could give us some examples of what you mean.

ok :)

Hello Melody,

After I pusblished the puzzle, there stand that it was invisible for Guests,

but in the next morning, it was no longer there. I think it has been fixed.

Straight