Find the sum. 1/4 + 2/7 a. 9/14 b. 3/11 c. 15/28 d. 3/28
1 answer:
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For this case we have the following type of equations:
Quadratic equation:
Linear equation:
We observe that when equating the equations we have:
Rewriting we have:
We obtain a polynomial of second degree, therefore, the maximum number of solutions that we can obtain is 2.
Answer:
The greatest number of possible solutions to this system is:
c.2
Quadratic equation:
Linear equation:
We observe that when equating the equations we have:
Rewriting we have:
We obtain a polynomial of second degree, therefore, the maximum number of solutions that we can obtain is 2.
Answer:
The greatest number of possible solutions to this system is:
c.2
The chances that the student was merely guessing is 1/3.
Bayes Theorem determines the conditional probability of an event A given that event B has already occurred.
denoted by
let A be the event that the student knows the answer .
B be the event that the student does not knows the answer .
and
E be the event he gets answer correct .
According to the given question
Probability that the answer is correct ,given that he knows the answer is
Probability that the answer is correct ,given that he guesses it is
[as the MCQ has 3 options and only one is correct]
We need to find the probability that he guesses the answer given that it is correct.
Required probability
Substituting the values we get
Therefore , the chances that the student was merely guessing is 1/3.
Learn more about Probability here brainly.com/question/13140147
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