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   it is 1/2

it is 11

Well numbers go on infinately and since primes also theoretically go on infinately, so yes, but the number of primes found by using p+2 will exponetially decrease.

You can use the take away symbol.

$$-{\mathtt{3}}$$

When you do calculations, its best to use brackets around negative numbers:

$$\left(-{\mathtt{3}}\right)$$

Random =/= Funny

Try watching this

I'd rather take circles as they have a better velocity and make the whole thing easier.

The next step is to question the color of John's Apple. Since red is more common, I'd go for green.

Now you have everything you need and the answer is "lasagna".

Is this a question or a statement?

$${\mathtt{5}}{\mathtt{\,\times\,}}{\mathtt{x}} = {\mathtt{5}}{\mathtt{\,\small\textbf+\,}}{\mathtt{x}} \Rightarrow {\mathtt{x}} = {\frac{{\mathtt{5}}}{{\mathtt{4}}}} \Rightarrow {\mathtt{x}} = {\mathtt{1.25}}$$

it is 25000

$${\frac{{\mathtt{780}}}{{\mathtt{6}}}}{\mathtt{\,\times\,}}{\mathtt{5}} = {\mathtt{650}}$$

$${{\mathtt{g}}}^{{\mathtt{2}}}{\mathtt{\,-\,}}{\frac{{\mathtt{5}}{g}}{{\mathtt{6}}}}{\mathtt{\,-\,}}{\mathtt{1}} = {\mathtt{0}} \Rightarrow \left\{ \begin{array}{l}{\mathtt{g}} = {\mathtt{\,-\,}}{\frac{{\mathtt{2}}}{{\mathtt{3}}}}\\
{\mathtt{g}} = {\frac{{\mathtt{3}}}{{\mathtt{2}}}}\\
\end{array} \right\} \Rightarrow \left\{ \begin{array}{l}{\mathtt{g}} = -{\mathtt{0.666\: \!666\: \!666\: \!666\: \!666\: \!7}}\\
{\mathtt{g}} = {\mathtt{1.5}}\\
\end{array} \right\}$$

Thanks Zekkuno, and welcome to the forum 

$$\left({\mathtt{1.33}}{\mathtt{\,\times\,}}{{\mathtt{10}}}^{{\mathtt{5}}}\right){\mathtt{\,\times\,}}\left({\mathtt{5.8}}{\mathtt{\,\times\,}}{{\mathtt{10}}}^{-{\mathtt{7}}}\right) = {\mathtt{0.077\: \!14}}$$

it is 21

$$\\f(x/((x^2)+x+1)=(x^2)/((x^4)+(x^2)+1) \\\\
f\left(\frac{x}{(x^2)+x+1}\right)=\frac{(x^2)}{(x^4)+(x^2)+1}\qquad find\;f(2)\\\\\\$$

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This question - and the one before it - have both been asked and answered (by different people twice)

Answering your question twice means other people's questions go totally unanswered.

If you question falls off the first page you are most welcome to draw aswerers attention to it.

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arc sin is the same as inverse sin so on the web2 calc it is

[2nd] [asin]

I'd like to know too.  

1 egg

This looks correct to me but I think the answer can be positive or negative.

write an equation for a circle:

*The endpoints of a diameter are (0,6) and (6,0)

I like this question :)

Find the length of the diameter using the distance formula

$$\\d=\sqrt{(6-0)^2+(0-6)^2}=\sqrt{72}=2\sqrt{18}\\\\
radius=\sqrt{18}\\\\$$

the centre is the midpoint of  (0,6) and (6,6) =  (3,3)

so

$$(x-3)^2+(y-3)^2=18$$

Here is the graph

Yes, that is correct :)

enter it inot the web2 calc like this  :)

(0.9+1.10^2-(11^2-117)=

Thanks Heureka,

you don't really need to do all that.

$$\\(2x+1)^{12}=\displaystyle\sum_{r=0}^{12}\;^{12}C_r(2x)^r(1)^{12-r}=\displaystyle\sum_{r=0}^{12}\;^{12}C_r(2x)^r\\\\
$The only term with x^6\; is $\\\\
^{12}C_6(2x)^6=^{12}C_6*2^6x^6\\\\
$So the coefficient of $x^6\;\;is \;\;\;^{12}C_6*2^6=^{12}C_6*64$$

$${\left({\frac{{\mathtt{12}}{!}}{{\mathtt{6}}{!}{\mathtt{\,\times\,}}({\mathtt{12}}{\mathtt{\,-\,}}{\mathtt{6}}){!}}}\right)}{\mathtt{\,\times\,}}{\mathtt{64}} = {\mathtt{59\,136}}$$