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nataoli3843
20.11.2020 •
Mathematics
17. You roll two dice. How many ways can you roll a sum greater than 7 or a doubles?
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Ответ:
Step-by-step explanation:
Synthetic division (shown below) or polynomial long division can be used to factor the binomial (x-6) from the cubic. The remaining quadratic is ...
(x^2 -3x +2)
and this can be factored as ...
(x -1)(x -2)
So the factorization of f(x) is ...
f(x) = (x -6)(x -2)(x -1)
The x-intercepts are the values of x that make these factors zero: {6, 2, 1}.
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The y-intercept is f(0) = -12. (It is the constant term, as all the variable terms are zero at f(0).)
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It is convenient to let technology create the diagram of synthetic division as shown here. The process is simple enough it is easily done by hand.