well... 5+2=7 in base 10

That would sound a bit "sus"

Sus is the latin word and the Genus for  "p*g"

Oiclid - get it - oh well, I can't impress all the people all the time.  :))

LOL!!!

Just so long as nobody thinks Euclid should be pronounced "Oiclid"!!

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Thanks Chris, I forgot the 0.014 in my original calculation of t.  I've now corrected that.

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No anonymous.

The inverse of a function means what would it be if it was reflected about the line y=x.

You get this answer by swapping the x and y values around.

Wed 29/10/14

1)  A bit of 'imaginary' information :)

@@ End of Day Wrap     Tues 28/10/14      Sydney, Australia       Time 12:25am    (Really Wed morn)    ♬

Hi everyone,

Lots of great answers today from robtre, kitty<3, TakahiroMaeda, danemathesius, geno3141, spechtjshj, CPhill, unknown, Fisker, SamHenry, Alan, HannahL14, and Coolman.  Thankyou    You are all wonderful.

Here are some posts that may be of interest:

1) Some bright (school) seniors might like to think about this one.

1/f(x)=4/(12x-1)

$$\\if \;\;x=2\;\;then\\
3x=3\times x=3\times2=6$$

f(x)=3x-1/4

y=3x-1/4

the inverse is 

x=3y-1/4

mult both sides by 4 to get rid of the fraction

4x=12y-1

4x+1=12y

y=(4x+1)/12

So the inverse function is

f(x)=(4x+1)/12

I do not understand the question.  

YES IT IS!!!

$$\left(\frac{1}{3}\right)^3=\frac{1^3}{3^3}=\frac{1}{27}$$

It's a fancy term for a  "lampshade"...........LOL!!!

I had to look up what  a frustum was

I don't see any choices, but the answer is

9.45 x 10⁶

19 - y = 10

-10 from both sides

9 - y = 0

+y to both side

9 = y

y = 9

(20 x 3053) / 2

this can be  simplified to:

10 x 3053

and this equals 30530

The volume of a frustum is gven by.....

V = (pi*h/3)(R² + Rr + r²) 

Where h is the height, R , r are the larger and smaller radii, respectively 

So.... h = 25   R = 15 and r = 7.5......so we have

V = pi*(25/3)(15² + (15)(7.5) + 7.5²) .......using the on-site calculator

$${\mathtt{\pi}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{25}}}{{\mathtt{3}}}}{\mathtt{\,\times\,}}\left({{\mathtt{15}}}^{{\mathtt{2}}}{\mathtt{\,\small\textbf+\,}}\left({\mathtt{15}}{\mathtt{\,\times\,}}{\mathtt{7.5}}\right){\mathtt{\,\small\textbf+\,}}{{\mathtt{7.5}}}^{{\mathtt{2}}}\right)\right) = {\mathtt{10\,308.350\: \!894\: \!591\: \!509\: \!063\: \!7}}$$

about 10,308.35 cm³

It is "Oiler," Melody......there remains a debate about who the greater mathematician was, Euler or Gauss. Euler was certainly more prolific in his output, even in his advanced years (when he was almost totally blind).....(I might throw Archimedes into the debate, as well !!!)

2.111111111111

19/-9=2.11111111111

short 2.11

866980!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I get something a little different from Alan, here

The beginning population number doesn't matter, so the first part is.....

2.38P = Pe^.014t    divide by P and  take the ln of both sides

ln(2.38) = lne^.014t     and by a log property, we have  (remember, lne = 1)

ln(2.38) =.014t   divide both sides by .014

ln(2.38)/.014 = t = 61.9357 years