Please answer it’s a timed test
2 answers:
Answer:
x=35
Step-by-step explanation:
The sum of angles in a triangle is equal to 180. In the triangle given, we have to add all the angles to find x.
So,
to find x, we must isolate it:
combine common terms:
subtract the 40 to both sides:
divide by three to isolate the variable:
and the resulting would be our x:
to check if our answers make sense, substitute.
solve:
that's it! hope it helps :)
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Answer:
The value is
Step-by-step explanation:
From the question we are told that
The probability that the student knows the answer to the question is
The probability that that the student will guess is
The probability that that the student get the correct answer given that the student guessed is
Here W denotes that the student gets the correct answer
Generally it a certain fact that if the student knows the answer he would get it correctly
So the probability the the student got answer given that he knows it is
Generally from Bayes theorem we can mathematically evaluate the probability that the student knows the answer given that he got it correctly as follows
=>
=>
Answer:
Chips: 99 cents
Pretzels: $1.05
Look at attachment
