MaxWong

$\frac{a}{2}+\frac{2}{3}=\frac{5}{6}$

$3a+4=5$

$3a=1$

$a=\frac{1}{3}$

$\left (\sqrt{42n}\right )^9$

= $\sqrt{406671383849472n^9}$

= $3111696n^4\sqrt{42n}$

$\frac{sin23.48}{cos49.27}$

is not equal to -37.7. it equals 0.611

$2^6=2\times2\times2\times2\times2\times2=4\times4\times4=64$

$\frac{d}{dx}f(x) = lim_{h\rightarrow0} \frac{f(x)-f(x+h)}{h}$

If there is a point (a,b) on a Cartesian coordinate plane and a corresponding point (r,θ)......

r = $\sqrt{a^2+b^2}$

θ = $atan \frac{b}{a}$

Where atan is inverse tangent.

or do you mean 25256 which is divisible by 7? Or that makes no sense.

$25156\times\frac{7-4}{7}$

which equals 10781.1428........

hmm.. I will vote 14.28% for party A and 85.71% for party B and I will eat the remaining 0.01% XD

$\frac{486}{x}=54$

$x=\frac{486}{54}$

Therefore x=9

Sorry for some bad grammars. I am from Hong Kong actually