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n=9 p=197/(197+163) k=5 P(X=

**k**) =**C**(n,k) p^k (1-p)^(n-k)1 Answers · Science & Mathematics · 04/04/2017

...kx+7k 2x^2+5x-kx-7k-3=0 2x^2 +x(5-k) -7k-3 = 0 ax^2+bx+c = 0 a=2 b= 5-

**k****c**= -7k-3 3 and m are the roots sum of the roots = -b/a 3+m...2 Answers · Science & Mathematics · 20/03/2017

... major axis Vertices = (h, k±a) = (2,1) and (2,9) Foci = (h,

**k**±**c**) = (2, 5−2√3) and (2, 5+2√3)2 Answers · Science & Mathematics · 21/02/2017

Since the events

**C**and D are independent P(**C**and D) = P(**C**)*P(D) a) P(**C**and D) = 2k * 3k^2 = 6k^3 b) since P(**C**and D) = 6k^3 6k^3 = 0.162**k**^3 = 0.162/6 = 0.027**k**= cube root of 0.027 = 0.3**c**...2 Answers · Science & Mathematics · 16/02/2017

... largest +ve number such that 2^k divides c) then 2^

**k**|**c**so c = 2^k * n where n has to be odd (If n were even then...1 Answers · Science & Mathematics · 24/01/2017

... (matches). Use the binomial probability formula: P(X =

**k**) =**C**(n,k) * p^k * q^(n-k) n : number of trials (20) k : number...1 Answers · Science & Mathematics · 14/12/2016

...a(k-1) balls. a) a(4) = a(3) + 4*5/2 = 20, a(5) = 35, a(6) = 56 b) a(

**k**) =**C**(k+3,3) b) may be obtained from the recurrence a(k) = a(k-1) + k+ (k-1...1 Answers · Science & Mathematics · 12/12/2016

a. d=kt The input is t and the output is d. b. 180=4.5k; k=40

**c**. d=40t d. 320=40t; t=8 hours1 Answers · Science & Mathematics · 26/11/2016

Use the binomial probability formula: P(X=

**k**) =**C**(n,k) * p^k * q^(n-k) n : number of trials (7) k : number...1 Answers · Science & Mathematics · 05/12/2016

Use the binomial probability formula: P(X=

**k**) =**C**(n,k) * p^k * q^(n-k) n : number of trials (7) k : number...2 Answers · Science & Mathematics · 05/12/2016

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