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jarptica [38.1K]
2 years ago
7

A stock gained 2 7/8 points, lost 1 3/4 points, gained 1/2 points, lost 5 points. What was the total change in the stocks price?

Mathematics
1 answer:
LenaWriter [7]2 years ago
5 0

Answer: So it's negative (If thats ok) 3 3/8

Step-by-step explanation:

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Bad gums may mean a bad heart. Researchers discovered that 82% of people who have suffered a heart attack had periodontal diseas
saveliy_v [14]

Answer:

37.27% probability that he or she will have a heart attack.

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

P(B|A) = \frac{P(B)*P(A|B)}{P(A)}

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Periodontal disease

Event B: Heart attack

Researchers discovered that 82% of people who have suffered a heart attack had periodontal disease, an inflammation of the gums.

This means that P(A|B) = 0.82

Only 33% of healthy people have this disease.

This means that P(A) = 0.33

Suppose that in a certain community heart attacks are quite rare, occurring with only 15% probability.

This means that P(B) = 0.15

If someone has periodontal disease, what is the probability that he or she will have a heart attack

P(B|A) = \frac{0.15*0.82}{0.33} = 0.3727

37.27% probability that he or she will have a heart attack.

6 0
3 years ago
What’s the answer to this? I’ll mark you brainliest if you tell me the answer/what to put 3
fgiga [73]

Answer:

domain is basically x and range is y, so -2,5    -2 is domain and 5 is range

Step-by-step explanation:

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2 years ago
Write an exponential function in the form y = abthat goes through points (0,2)
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Answer
5/20 so 25%
Explanation
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Assume a fair deck of playing cards. Find the probability of drawing a 10, replacing it and drawing an ace.
cupoosta [38]

Answer:

There are 52 cards in a deck. The total number of outcomes possible when picking 2 cards and replacing them is 52 * 52 = 2704.

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6 0
3 years ago
Special right triangles find the missing side lengths. Leave your answers as radicals in simplest form. Need help ASAP due tomor
Soloha48 [4]

Answer:

Step-by-step explanation:

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3 years ago
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