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ruslelena [56]
3 years ago
15

BCDE is a parallelogram. What is the measure of ∠BEC?

Mathematics
1 answer:
Ivenika [448]3 years ago
4 0
The measure of ∠BEC would be 80 degrees
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The usher at a wedding asked each of the 808080 guests whether they were a friend of the bride or of the groom. Here are the res
malfutka [58]

<u>Complete Question</u>

The usher at a wedding asked each of the 80 guests whether they were a friend of the bride or of the groom. The results are: 59 for Bride, 50 for Groom, 30 for both. Find the probability that a randomly selected person from this sample was a friend of the bride OR of the groom.

Answer:

0.9875

Step-by-step explanation:

Total Number of Guests, n(S)=80

Let the Event (a friend of the bride) =B

Let the Event (a friend of the groom) =G

n(B) =59

n(G)=50

n(B \cap G)=30

Therefore:

n(B \cup G)=n(B)+n(G)-n(B \cap G)\\n(B \cup G)=59+50-30\\n(B \cup G)=79

Number of Guests who was a friend of the bride OR of the groom = 79

Therefore:

The probability that a randomly selected person from this sample was a friend of the bride OR of the groom.

P(B \cup G) =\dfrac{n(B \cup G) }{n(S)} \\\\=\dfrac{79 }{80}\\\\=0.9875

4 0
3 years ago
Simplify. (22)-3 i need this for a test guide
Tanzania [10]
22 times -3, we know this will result in a negative number. 22 times 3 = 66 so the answer is -66. is that what you mean by simplify? or is it asking for something different?
4 0
3 years ago
Rewrite the word sentence, 27 is 3 times a number y, as an equation
Daniel [21]
27= 3n? Im confused because normally I would say ''3n'' but the 'y' is included. Look back at the notes?
6 0
3 years ago
Multiply. √20 · √63 <br> A. 5√35<br> B. 6√35 <br> C. 6√12<br> D. 6√5<br> 30 points!! Pls help :(
Dvinal [7]

Answer:

<h2>B. 6√35 po correct </h2>

Step-by-step explanation:

simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Exact Form:

6√35

Decimal Form:

35.49647869

<h2>Hope it help po.. pwede brainliest : (</h2>
6 0
2 years ago
What does 2/3 + 1/3 + 5/3 =?
almond37 [142]

Answer:

2 and 2/3

Step-by-step explanation:

that is the answer

4 0
3 years ago
Read 2 more answers
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