897/21
2 1/5 - 1 2/3
4/(2a-1) + (a+7)/(3a-5) =2
x^2-2x
-12a-10a
-12a10a
(2x+5)(5x-3)(3x-4)
solve the equations simultaneously
3x+5y=2
7x+8y=6
287/-6
the pressure loss in a pipe Plis related to the flow rate Q by the equation Pl= KQ^n. If Pl=150Pa, Q=0.002m^3/s and K=171.5 x 10^3...