Recent content by roxas

i am too retarded:smile: , can u show me a step by step please

i know i totally sux so can anyone help me? thx factorise x^3 - 2x^2 - 5x + 6

okay thanks for ur help

if its 5x^2 + 16x - 50 = 0 and i sub it into the quadratic formula, do i just sub in the coefficients only, or do i have to include the signs. for my first question i tried it, but i ended up having 8x + 1.5x -40 = 0 i don't know i i did wrong:frown: :frown: :frown:

thx so much. one more think i need to ask, if i put the conefficients into the quadratic formula, do i have to include the + - signs into it, or do i just use the numbers?

a route up a mountain is 20km john followed this route at xkm/h he came down a different route the length of the route is 25km his average speed coming down increase by 2km/h than his average speed going up it took john 1.5 hours less to come down than to go up write an equation in x and show it...

so can anyone help me with these factorisation questions? factorise 18t^2 -2 3tx-2sx+15ty-10sy can anyone please show me the steps thx

what is the smallest resistance that can be obtained by using onlu a 3 ohm resistor and a 12 ohm resistor?? can anyone please tell me why the answer is 2.4ohm? i calculATED USING 1/3 = 1/2 AND I GOT 4 OHMS:mad: thx anyway

and how do i use the fleming right hand rule. does my hand have to face downwards or upwards?

can anyone explain the diff to me thx.:!) :!)

okay this question is confusing like everything i currently know about p.e and k.e. okay so the maximum energy of a rollercoaster is 4000j. the mass of the trolly is 20kg, and the acceleration due to gravity is 10m/s^2(dunnoe where's the squared button on the keyboard) okay so i am supposed to...

edit: oops my com crapped up and i accidentally double posted .

edit: my sos message was posted at the same time as yours. thanks soo much

H3LP ME! MY L1F3 SUX I AM 3M0 PL3AS3 TE11 M3 THE AN5W3R T0 THAT QU35T10N PL3AS3 PL3ASE ANIB0DY PLEASE! . THX =) my exam is next week=(

i forgot...thats why i apologised to the mods in the second post