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maria [59]
3 years ago
10

AC is tangent to circle O at A. If mBY =24, what is m

Mathematics
1 answer:
Leokris [45]3 years ago
4 0
The correct question in the attached figure

we know that
<span>the inscribed angle measures half of the arc it comprises.
</span>then
m∠YAB=(1/2)*m∠BY-------------> m∠YAB=(1/2)*24°=12°
m∠YAC=90°-m∠YAB=90°-12°=78°

the answer is the option C) 78°    

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After your yearly checkup, the doctor has some bad news and some good news. The bad news is that you tested positive for a serio
Maru [420]

Answer:

0.009804

Step-by-step explanation:

We are given;

probability of testing positive given that you have the disease is 0.99

Also, probability of not testing positive and not having the disease is 0.99

We are also told that it is a rare disease and so strikes only 1 in 1000 people = 0.0001

Let's denote positive test by T+, negative test by T¯, having the disease by D+, not having the disease by D¯.

So, we can now denote all the values in probability we have written earlier.

Thus:

P(T+ | D+) = 0.99

P(T¯ | D¯) = 0.99

P(D+) = 0.0001

Thus, P(D¯) = 1 - P(D+) = 1 - 0.0001 = 0.9999

Now, let's find probability of testing positive;

P(T+) = (P(T+ | D+) × P(D+)) + (P(T+ | D¯) × P(D¯))

Now, (P(T+ | D¯) is not given but by inspection, we can infer from the values given that it is 0.01

Thus;

P(T+) = (0.99 × 0.0001) + (0.01 × 0.9999)

P(T+) = 0.010098

Chances that one has the disease would be gotten from Baye's theorem;

P(D+ | T+) = (P(T+ | D+) × P(D+))/P(T+) = (0.99 × 0.0001)/0.010098 = 0.009804

7 0
3 years ago
Graph the equation f(x)=-10x^2
Zepler [3.9K]
The graph which you seek is attached to this answer.

5 0
3 years ago
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anyanavicka [17]

So we know that the slope-intercept form of an equation is:


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Answer:

D.9 hope this helps

Step-by-step explanation:


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3 years ago
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Semenov [28]

Answer:

7

Step-by-step explanation:

\sqrt{49} means x*x = 49

x * x = 49

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\sqrt{49} =7

Hope this helps :)

Have a great day!

6 0
2 years ago
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