Melody

Good one anon - I can't fault your logic :)

$${\frac{\left({\frac{{\mathtt{17\,765}}}{{\mathtt{9\,350}}}}\right)}{{\mathtt{0.015}}}} = {\frac{{\mathtt{380}}}{{\mathtt{3}}}} = {\mathtt{126.666\: \!666\: \!666\: \!666\: \!666\: \!7}}$$

$$$The right answer is $126.\bar6$$    

42.79 is not the answer.   

You can use the symbol that Alan has shown you and this symbol is on almost all scientific calculators.

Another very common symbol for 'power of' is ^    It is above the 6 on your keyboard.

On the web 2 calc on the home page you can type what you want straight inot the input box.

so if you want (10+6)to the power of 4 you can just type in

(10+6)^4

Listen to this clip

It will be worth your while!

$$\\sin30 = \frac{57.74}{d}\\\\
dsin30 = 57.74\\\\
d = \frac{57.74}{sin30}\\\\$$

$${\frac{{\mathtt{57.74}}}{\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{30}}^\circ\right)}}} = {\frac{{\mathtt{2\,887}}}{{\mathtt{25}}}} = {\mathtt{115.48}}$$

$$\\f(x)=2x + 2\\
y=2x+4\\
$swap the x and the y over$\\
x=2y+4\\
x-4=2y\\
y=\frac{x-4}{2}\\\\
f'(x)=\frac{x-4}{2}\\$$

Here is the pic  

thank you Alan.  I think you have made a small error, the sides of the triangle are in the ratio 3:4:5

but their lengths are 6,8 and 10 cm

so the radius of the circle is 5cm

Thank you Alan:)

Alan or Chris, could you please comment on my question here.

two things are directly proportional if as one gets bigger the other also gets proportionally bigger but the constant can be negative, cant it? So how does that work?

Thanks you