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3 years ago

Find the equation of a line that passes through the points (2,13) and (1,8)

Mathematics

1 answer:

kkurt [141]3 years ago

7 0

Answer:

$y = 5x + 3$

I hope this helps!

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iren2701 [21]

The answer is: y = |x + 6|

4 0

2 years ago

In answering on a multiple choice test, a student either know the answer or guesses. Let p be the probability that the students

LenaWriter [7]

Answer:

$P(A_{1}|B ) =\frac{mp}{1+p(m-1)}$

Step-by-step explanation:

For mutually exclusive events as A1, A2, A3, etc, Bayes' theorem states:

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

P(A|B) is a conditional probability: the likelihood of event A occurring given that B is true.

P(B|A) is a conditional probability: the likelihood of event B occurring given that A is true.

P(A) is the probability that A occurs

P(B) is the probability that B occurs

For this problem:

A1 is the probability that the student knows the answer

A2 is the probability that the student guesses the answer

B is the probability that the student answer correctly

$P(A_{1})=p \\P(A_{2})=1-p \\P(B|A_{1})=1 \\P(B|A_{2})=\frac{1}{m} \\P(B)= P(A_{1})P(B|A_{1}) + P(A_{2})P(B|A_{2})= p+\frac{1-p}{m} \\$

P(B|A₁) means the probability that the answer is correct when he knew the answer

P(B|A₂) means the probability that the answer is correct when he guessed the answer

P(A₁|B) means the probability that he knew the answer when the answer was correct

Replacing everything in the Bayes' theorem you get:

$P(A_{1}|B)= \frac{P(B|A_{1})P(A_{1})}{P(B)}=\frac{(1)(p)}{p+\frac{1-p}{m}} =\frac{mp}{mp+1-p} =\frac{mp}{1+p(m-1)}$

5 0

2 years ago

Can someone please help

Artemon [7]

Answer:

$1000$

Step-by-step explanation:

$3443-2476$

$=967$

4 0

3 years ago

I will mark brainliest if ur answer is correct

sergeinik [125]

Answer:

43°

Step-by-step explanation:

80°-37°= 43°

3 0

3 years ago

Read 2 more answers

What is the answer to number 1

Oksi-84 [34.3K]

Would the common factor be 1?
edit
the least common is 1 and the most common is 2

thanks andreadiaz2003

6 0

3 years ago

Read 2 more answers