MaxWong

Trip expenditure = t.

$t<4200+\dfrac{6000-4200}{91}$ Inequation.

Area = 72 m^2.

OR

Area = (x)(x+6) = x^2 + 6x.

Therefore 

x^2 + 6x = 72

x^2 + 6x - 72 = 0   <---- That became a quadratic.

(x+12)(x-6) = 0

x = -12 (rejected) OR x = 6

Therefore length = x = 6, and width = x + 6 = 6 + 6 = 12.

gimme the stars :)

-14 + 2x = 6

-14 +2x + 14 = 6 + 14

2x = 20

x = 10

$-\frac{4}{5}\times \frac{9}{5}\\ =-\frac{4\times 9}{5\times5}\\ = -\frac{36}{25}$

4/10 + 15/10 = (4+15)/10 = 19/10 = 1 9/10

$\sqrt{-9}$= 3i according to the calculator on this site, and it is correct.

2/3 = 66 2/3 % approximated as 0.67 or $0.\overbrace{666666.....6}^{\infty}$

$H_2O_2\rightarrow H_2O+O_2\\ 2H_2O_2\rightarrow 2H_2O + O_2$

Does that mean every 2 molecules of hydrogen peroxide will break down into 2 molucules of water and 1 molecule of oxygen gas?

Sorry for only knowing how to balance an equation LOL

30% x 3360

= 30/100 x 3360 <-- def. of percentages.

= 3/10 x 3360

= 3 x 336

= 1008