Search results

- Prioritize yourself.

Did you try partial fractions?

dx/dt = 1/x - x/4 Take L.C.M dx/dt = (4 - x^2)/4x Cross multiply dx*4x = 4dt - x^2dt dx*4x = dt(4-x^2) (dx*4x)/(4-x^2) = dt Switch sides and integrate. t = -2ln(4-x^2) + c t = o x = 1 >> 0=-2ln(4-1) + c 0 = -2ln3 c = 2ln3 Substitute. t = -2ln(4-x^2) + 2ln3 t - 2ln3 = -2ln(4-x^2) -t + 2ln3 =...

Mass = 1100 Fd = 1800 Fr = 700N Distance = x Speed = v i) K.E = 1/2(1100)v^2 = 550v^2 P.E = (1100)(10)(160) = 1760000 Now we have to find it in terms of x which is distance. So it will become 1760000/1760 = 1000x kv^2 = x 1800x = 700x+ 550v^2+ 1000x ^This is the WD equation. I just...

You're welcome! :D

Sorry for the late reply. My internet loses it sometimes. No wonder when it might lose it next :mad: So. You have Ways of choosing exactly one tenor. ANY of the remaining for the other two people 3C1*17C2 = 408 You did 3C1 * 13C2. Why 13? total people are 20. You have to choose 1 from 3 and...

Okay I tried Note: 3 are chosen from a total of 20 so your total is 20C3 = 1140(useful to find probability) a) 3C3*17C0 = 1 For probability, divide by total 1/1140 = 0.00087 b) List all the possibilities. Remember 3 are chosen and exactly 1 bass is chosen…. ● 4C1*3C2 = 12 ● 4C1*6C2 = 60...

Whats the answer? Ill post my solution if I got it right

Can't forget. Can't forgive. 16-12-2014. Longing for peace...

This time, the result is on 13th january for Alevels and 19th january for Olevels. They changed the dates to facilitate the alevel students with their applications and stuff.

... and I'm a fighter!