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9 / [ √3 / 2]   =

[9 /1] * [ 2 / √3 ]  =

18/ √3      multiply top/bottom by  √3

18 * √3  / [ √3 *√3]  =

[18 * √3 ]  / 3  =

18/3   * √3   =

6 √3

divide 72 by 6 dumbass

They sound like world famous books, almost poems. :D What are they about?

"Grapes of Wrath'  by John Steinbeck 

"Les Miserables"  by  Victor Hugo

"Moby D**k" by Herman Melville

-.26666666666666666666666 (the six is repeating)

um... @MysticalJaycat who is chris?

Hi Chris. Out of curiosity, do you have any pets?

1: You're awesome!

2: Orange!

3. Something cool!

But remember this is a math forum.

of course I know that, I'm not 2, and I do it on purpose. Do you like it?

Yes its right! Thank you :)

The second Guest's answer is correct....

Yes (2k+1)(4k-5) is right.

Is (2k+1)(4k-5) right though?

No, its negative. That whats written in my textbook. 

The answer is (2k+1)(4k-5) I think.

Is the last number supposed to be positive?

Which point is in the solution set of the given system of inequalities?

\(Where \ is \ the \ inequality \ system?\)

Here you go :   http://www.purplemaths.com/modules/distform.htm

A car speeds up uniformly from rest so that it has a velocity of 30m/s after 20s.

How long does it take to travel 250 m?

* putting in mind that the answer is 18 s.

\(b=\frac{v}{t}=\frac{30m}{20s^2}=1.5\ m/s^2\)

\(s=\frac{b}{2}t^2\)

\(t=\sqrt{\frac{2s}{b}}=\sqrt{\frac{2* 250\ m*s^2}{1.5m}}=18.257s\)

\(The \ car \ runs \ 18.257\ seconds.\)

  !

8*10^-3

\(​ 8\times 10^{-3}=8\times\frac{1}{10^3}=0.008\)

!

12 x 1086     will give you the answer

C  = 2 * pi * radius   =  2 * pi *  24   =   48 pi   ≈   150.8

If it's not repeating:

rewrite the decimal number as a fraction (over 1), then multiply the numerator and the denominator by 10^y (y being the number of decimal places it has), then simplify

FOR EXAMPLE:

0.325/1=325/1000=13/40

If it's repeating:

name the decimal x, then multiply it by ten until it repeats the second time, the number should be 10^yx (y being the number of numbers before it repeats the second time).

Subtract 10^yx by x and simplify until you get a fraction.

FOR EXAMPLE:

0.654654654654...=x

0.654654654654...    it keeps repeating "654" so we have to multiply it by 10³.

654.654654654654...=1000x

1000x-x=654.654654654...- 0.654654654654=

999x=654

x=654/999

x=218/333

12000=0.01328*20^2*V^3       solve for V

Divide both sides by   0.01328*20^2

12000 / ( 0.01328 * 20^2)  =  V^3       take the cube root of both sides

[12000 / ( 0.01328 * 20^2)]^(1/3)  =  V  ≈  13.12