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3 years ago

The quadratic equation whose roots are 3-√3 and 3+√3

SAT

1 answer:

vovangra [49]3 years ago

7 0

Answer:

x²-6x +6

Explanation:

in general (x-root1) (x-root2) will give you the equation

for our case, the equation is given by

(x-3+√3)(x-3-√3), distribute

x²-3x-x√3 -3x+9+3√3+x√3-3√3-√9, group like terms and substitute √9 by 3

x²+(-3 -√3 -3 +√3)x +(9 +3√3 -3√3 -3), combine like terms

x²-6x +6

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The complete function definition to output the hours given minutes is as follows:

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--------------------

The patients are chosen from the sample without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

The parameters are:

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56074 patients, thus $N = 56074$
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The probability that none left against medical advice is P(X = 0), so:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

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The quadratic equation whose roots are 3-√3 and 3+√3​

The quadratic equation whose roots are 3-√3 and 3+√3