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Marianna [84]
3 years ago
7

Juliet is being tested for a contagious disease. The test is 99% accurate and in actuality 0.1% of the population has the diseas

e. Juliet still thinks she has the disease even though she tested negative. Is she worrying too much? Explain.
A) She is worrying too much as the test is 99% accurate.
B) She should be worried as there is a 9% probability that she is sick.
C) She should be worried as there is still a 1% chance she has the disease.
Eliminate
D) She is worrying too much as the probability that she is sick given she tested negative is 0.0001
Mathematics
2 answers:
Fed [463]3 years ago
7 0
The answers A and C contain correct information but both of them provide different advice. so the answer is literally your opinion between a and c
monitta3 years ago
6 0

Answer:

D

Step-by-step explanation:

You are looking for a conditional probability. P(has the disease given that you tested negative). This probability is

1

9891

= 0.0001. Which means that the likelihood she has the disease is very small. Therefore, She is worrying too much as the probability that she is sick given she tested negative is 0.0001

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A triangle has points dallas, destination 1, and destination 2. the distance from dallas to destination 1 is 720 miles, and the
timurjin [86]

The distance from the second destination back to Dallas is 918 miles

<h3>Given</h3>

A triangle has points Dallas, destination 1, and destination 2.

The distance from Dallas to destination 1 is 720 miles

The distance from destination 1 and destination 2 is 290 miles

the angle formed between Dallas, destination 1, and destination 2 is 125 degrees.

He moves from destination 1 to Dallas then destination 2

We could use cosine law to find the distance

<h3>What is cosine law?</h3>

The Law of cosines or cosine law means the relation between the length of sides of a triangle with respect to the cosine of its angle. It is also called the cosine rule

b^{2}=a^2+c^2-2ac*cosB

=290^2+720^2-2*720*290*cos125

=84100+518400-417600 cos 125

=602500-417600*(-0.5735)

=602500+239493.6

=841993.6

b=917.6 miles

≅918 miles

The distance is 918 miles  he will fly from the second destination back to Dallas

Learn more on Distance here:

brainly.com/question/23183268

#SPJ4

5 0
2 years ago
Need soo much help. Please somehow help with this:)
REY [17]
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4 0
3 years ago
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Michela’s skateboard ramp is at an incline of 40°. When she attempts a trick on the ramp, she finds that it is too steep. She ad
marissa [1.9K]

Answer:

22.7604763 degrees

Step-by-step explanation:

Note that the answer is NOT 20 degrees.

She adjusted the ramp to half the original <em>incline</em>

Therefore we have tan 40 = x = 0.839099631.

We want an incline of y degrees where tan y = x/2 = 0.839099631/2 = 0.419549815

Taking the arctan of both sides, we get

y = arctan(0.419549815) = 22.7604763 degrees

8 0
3 years ago
△PQR has two known interior angles of 34°, and 80°. △RST has two known interior angles of 24°, and 90°. What can be determined a
Sergeeva-Olga [200]
In order for two triangles to be similar, there must be 2 pairs of congruent angles. Since two angles of triangle PQR have different measures from two angles of triangle RST, it is impossible to have two pairs of congruent angles, so the triangles cannot be similar.

The answer is in bold type below.

<span>All interior angles must be given to determine similarity.
The triangles are not similar.
Similarity cannot be determined from the given information.
The triangles are similar. </span>
3 0
3 years ago
Read 2 more answers
Find f(4).<br> f(x) = x2 + 2x - 3<br> A)<br> 5<br> B)<br> 11<br> 13<br> D)<br> 21<br> Elimina
grandymaker [24]

Answer:D

Step-by-step explanation:

you plug 4 in for x

f(4)=4^2+2(4)-3

=16+8-3

=24-3

=21

3 0
2 years ago
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