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inn [45]
3 years ago
5

Solvex2 - 8x + 12 =0 for x. The solutions for x are and

Mathematics
1 answer:
Marianna [84]3 years ago
3 0

Answer:

2 and 6

Step-by-step explanation:

First factor x from the expression

x^2-2x-6x+12=0

x(x-2)-6x + 12=0

Then factor out x-2 from the expression

x(x-2)-6x + 12=0

(x-2)(x-6)=0

When the product of factors equals 0, at least one factor is 0

(x-2)(x-6)=0

x-2=0

x-6-0

And so

X=2

X=6

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Answer:

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Step-by-step explanation:

For each children, there are only two possible outcomes. Either it is a girl, or they are not. The probability of a child being a girl is independent of any other child. This means that the binomial probability distribution is used to solve this question.

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P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

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