Recent content by MrNeWBiE

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Well am not looking for someone to solve the problems ,,, am looking for someone telling me how to use excel to solve some problems. with excel functions. the problems " 1.From this population of 500 households, select a simple random sample of 50 households (Use the program...

how can i use excel to solve some Statistics problems ,,, hi all ,,, am looking here for help. to know how to solve some stat problem with excel could someone help me please ,,,, :rolleyes: well the things I want to know are. " A data set was gathered from 500 households (you...

i saw my mistake at last !

i know that ,,, but i expand (x+h)^2 also ,,, that why i got " h^2 -2xh +2xh +x^2 -1 - ( x^2 -2x+1) "

it's (h+x-1)^2 -(x-1)^2 ====> h^2 -2xh +2xh +x^2 -1 - ( x^2 -2x+1)2xh will go with -2xh so it's going to be h^2 +2x

ohh,,, so i will get -2x-h^2/h(x-1)^2 (x+h-1)^2 ,,,, yet there is "-2x- " so i can't take h with h ,,, so should i divide all by -2x ?

expanding the numerator ,,, how to multiply h(x^2-2x+1)(x^2+h^2+1) start with which one ??

solve derivative by using the definition of the derivative limit ,,, hi alll 1. Homework Statement [/b] find the derivative by using the definition of the derivative limit h(x)= (x-1)^-2 3. The Attempt at a Solution well ,,, first f(x) = 1/(x-1)^2 ====>...

aha ,,,, well i consider " demand as a function of price " so i think it was right ,,, thx a lot mark

and btw the mark ,,,, since the question say " x " is the unit then the first two points you gave me are right ,,,,

long numbers ,,, i only need the first 3 after the " . " because i can't write a lot of numbers in my homework page ,,,,

well i will use this because its give me the answers ,,, and today i should give the doctor the homework and yet 6 questions i didn't finish xD thx mark ,,, i will try the other way later

yo mark ,,,, i think the first points you gave me was right ,,, because i try with calculator every time 1$ down ,,, add 500 units ,,, and i get the same answer as the first two ponits,,,,

d(f) = -500x+20 then i plug this with (cost) or i should add something before adding ?