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3 years ago

X/3 +17 less than or equal to 15

Mathematics

1 answer:

Sliva [168]3 years ago

5 0

$x \leqslant - 6$

x/3+17is less than or equal to 15

x/3is less than or equal to 15-17

xis less than or equal to -6

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A certain virus infects one in every 200 people. a test used to detect the virus in a person is positive 70% of the time when t

V125BC [204]

We're told that

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$P(B\mid A)=0.7$

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a. We want to find $P(A\mid B)$ . By definition of conditional probability,

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

By the law of total probability,

$P(B)=P(B\cap A)+P(B\cap A^C)=P(B\mid A)P(A)+P(B\mid A^C)P(A^C)$

Then

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(the first equality is Bayes' theorem)

b. We want to find $P(A^C\mid B^C)$ .

$P(A^C\mid B^C)=\dfrac{P(A^C\cap B^C)}{P(B^C)}=\dfrac{P(B^C\mid A^C)P(A^C)}{1-P(B)}\approx0.9984$

since $P(B^C\mid A^C)=1-P(B\mid A^C)$ .

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3 years ago

I will mark as brainliest:)

labwork [276]

Hii I believe your option would be D. I hope it helps :)

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The measure of angle CDE is <br> degrees.

grin007 [14]

CDE = CDB + BDA + ADE

CDE = 42° + 37° + 20°

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hope it helps...!!!

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1 year ago

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It would surely be helpful if you let us know which angles to measure!

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