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1. ### math question plz help?

\$ = k + c[t-5] 5.17 = k + c*18 23 minute call 3.25 = k + c*10 15 minute call Subtract the equations above to get 1.92...

3 Answers · Science & Mathematics · 07/02/2009

2. ### Help with integrating?

... upon integrating , 1/(2*sqrt(k)) * ln( ( v - sqrt(k) ) / ( v+ sqrt(k) ) ) = -(C/m)*t so, ln( ( v - sqrt(k) ) / ( v+ sqrt(k) ) ) = -(C/m)*t * 2*sqrt(k) .......step...

2 Answers · Science & Mathematics · 27/09/2007

3. ### How do i solve this problem?

n = 17/2 A = 2^k C = 2^(k+4) = 2^k*2^4 = 16(2^k) B = (A+C)/2 = [2^k + 2^k(16)]/2 = [2^k(1 + 16)]/2 = ( 17 /2 )(2^k)

1 Answers · Science & Mathematics · 13/03/2009

4. ### Positive integers, find smallest ratio?

We have A + B + C = pi and k/a > k/b > k/c. Since A < B < C, C...

4 Answers · Science & Mathematics · 31/08/2010

5. ### How can I calculate this sum of binomial coefficients combinatorially?

...but let's see. #ways to get from (0,0) to (k,k) to (n,n) = C(2k,k) * C(2n-2k, n-k) Yes you're right, good observation! But I'...

2 Answers · Science & Mathematics · 13/12/2013

6. ### Hi all i have a vector problem. any1 can help me?

4.a = 8.i - 12.j +16.k -c - 4b = 3i -3j -2k -12i +12j -4k = -9i +9j -6k when i suppose that i j and k are...

2 Answers · Science & Mathematics · 22/08/2010

7. ### the perimeter of a rectangle is 38 cm.If the width is 10cm less than the length find the area of the rectangle?

Let l=length of the rectangle w=width of the rectangle The perimeter of the rectangle consists of two lengths and two widths, so one equation is a given: 2l+2w=38 Then, one is given that the width is 10cm less than the length, so there'...

9 Answers · Science & Mathematics · 18/08/2009

8. ### Which of the following is an expression of Avogadro's law k constant?

It's A. V, the volume, is proportional to n, the amount of matter.

2 Answers · Science & Mathematics · 16/12/2011

9. ### Integration of (1/x)d/dx is what?

Integration of (1/x)d/dx = ln(x) + C = ln(x) + ln (k) for some k = ln (kx)

3 Answers · Science & Mathematics · 12/08/2013

10. ### Combinatorial Identity Question?

...1+x)], and expand f(x) as a series of (1+x), f(x) = [1+(1+x)]^n (1+x)^2 = sum_k C(n,k) (1+x)^(n-k) (1+x)^2 = sum_k C(n,k) (1+x)^(n-k+2) = sum_k,m C...

2 Answers · Science & Mathematics · 29/10/2008