3 years ago

(x - 5)(5x + 2) = 0 (please help)

2 answers:

7 0

Answer:

x=-5

Step-by-step explanation:

please tell me if im wrong lol

7 0

Answer:

$(5 , - 0.4)$

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NeX [460]

The answer is D. x < 5.
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solmaris [256]

The result follows from manipulating the conditional probability. By definition,

$P(A_1\mid B)=\dfrac{P(A_1\cap B)}{P(B)}=\dfrac{P(B\mid A_1)P(A_1)}{P(B)}$

$P(A_1\mid B)=\dfrac{0.05\cdot0.60}{P(B)}$

By the law of total probability,

$P(B)=P(B\cap A_1)+P(B\cap A_2)=P(B\mid A_1)P(A_1)+P(B\mid A_2)P(A_2)$

So we have

$P(A_1\mid B)=\dfrac{0.05\cdot0.60}{0.05\cdot0.60+0.10\cdot0.40}\approx0.4286$

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3 years ago

Luden [163]

Answer:

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