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Alex787 [66]
4 years ago
13

A) write an equation B) x= Picture is above

Mathematics
1 answer:
Monica [59]4 years ago
6 0

Answer: Answer is in the steps

Step-by-step explanation:

The interior angles of a triangle add up to one 180 degrees so they all have to add up to 180 degrees.

A)  (x+10)° + 50° + (x+20)° = 180°

B) Now solve for x  using the equation

   x+10 + 50 +x+20= 180  

    2x + 80 = 180

            -80   -80

2x = 100  

x = 50    

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IF P(A)=1/3, P(B)=2/5, and P(AuB)=3/5, what is P(A^B)?
Bumek [7]

The probability of the union of two events is the sum of their probability, minus the probability of their interserction:

P(A \cup B) = P(A) + P(B) - P(A \cap B)

If we plug the known values into this formula, we have

\dfrac{3}{5} = \dfrac{1}{3} + \dfrac{2}{5} - P(A\cap B)

From which we can deduce

P(A\cap B) = \dfrac{1}{3} + \dfrac{2}{5} - \dfrac{3}{5} = \dfrac{2}{15}

So, the probability of A \setminus B is a bit less than P(A), we have to take away all events that belong to B as well:

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3 years ago
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denis-greek [22]

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34 times 70

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3 years ago
What information is needed to determine that the two triangles are congruent be ASA?
Anna007 [38]

Answer:

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1. The student government snack shop sold 32 items this week.
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