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Furkat [3]
3 years ago
15

I don’t understand what I need to do in this problem or how to get the answers

Mathematics
1 answer:
ANTONII [103]3 years ago
5 0

Answer:

2.5 is your answer.

Step-by-step explanation:

Since the given hypotenuse is 6.5 and one of the lengths is given as 6, we can use the equation a^2 +b^2 =c^2 to solve this. Plugging the numbers in, it would now be 6^2+b^2 =6.5^2, which would give you 36+b^2=42.25. Now, all you need to do is solve. Subtract 36 from 42.25, which will result in 6.25. Now, the equation is at b^2=6.25. All you need to do now is find the square root of 6.25, which would be 2.5, therefore giving you your answer.

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HELP ASAP PLZ will give u brainliest if u answer it first find the length of df
mr Goodwill [35]

Answer:

3.75

Step-by-step explanation:

DF = 6/24 × 15 = 3.75

________________

6 0
2 years ago
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
Terri is rewriting 7^13 in expanded form. How many factors should she use in her expression?
Mazyrski [523]
She should use 13 factors.
All 13 factors are the same thing . . . 7 .

7^13 should be written as 7¹³ .

It means:  7·7·7 · 7·7·7 · 7·7·7 · 7·7·7 · 7
6 0
3 years ago
Read 2 more answers
Create a system of equations whose solution is <br> (−4, 7)<br> .
saveliy_v [14]
So 7 is greater I am not smart I am just trying to answers some question
5 0
3 years ago
the location on point k is shown on the number line below. what fraction is represented by the location of point k
Xelga [282]
The location of point K as a mixed number is 8 6/8 = 8 3/4 because there are 8 lines, and point K is on the 6th line.

Hope this helped☺☺
7 0
3 years ago
Read 2 more answers
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