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2 years ago

Don’t steal points Pls I’m doing a final need it quickly

Mathematics

2 answers:

Keith_Richards [23]2 years ago

7 0

It’s the third one.

Tcecarenko [31]2 years ago

4 0

Answer:

the 3rd one

Step-by-step explanation:

A proportional relationship has to have a Stright line. Hope this helps :)

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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

$P(A)=\dfrac1{200}=0.005\implies P(A^C)=0.995$

$P(B\mid A)=0.7$

$P(B\mid A^C)=0.05$

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

$P(A\mid B)=\dfrac{P(B\mid A)P(A)}{P(B\mid A)P(A)+P(B\mid A^C)P(A^C)}\approx0.0657$

(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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2 years ago

What is the Definition of Algebra?

saveliy_v [14]

Answer:

the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.

Step-by-step explanation:

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2 years ago

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What is the measure of the missing angle?<br> 40<br> 90

Lyrx [107]

Answer:

50°

Step-by-step explanation:

I am assuming that the shape is a right triangle.

All interior angles of a triangle add up to 180°.

$x + 40 + 90 = 180\\\rule{150}{0.5}\\x + 130 = 180\\\\x + 130 - 130 = 180 - 130\\\\\boxed{x = 50}$

The missing angle should be 50°.

Hope this helps.

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If m <1=45°,Which other angles have a measure of 45°? check all that apply<br>

Alex777 [14]

Answer:

4 and 5 hope this helps

Step-by-step explanation:

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2 years ago

Find the sum of the first 6 terms of the series 3-6+12-24+

irinina [24]

Theres only 4 but the answer is -15

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