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lozanna [386]
3 years ago
8

4x + 5 = 25 x = 2 x = 5 x = 2 x = 7

Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0

Hi there!

Answer:

\huge\boxed{x = 5}

4x + 5 = 25

Subtract 5 from both sides:

4x + 5 - 5 = 25 - 5

4x = 20

Divide both sides by 4:

4x/4 = 20/4

x = 5.

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Well lets go through what I know

  • The answer to the first one (A) is 49 and were looking for 45
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So the answer we are looking for is (B) 45

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8 0
3 years ago
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Shtirlitz [24]

The expected value of the discrete distribution is of 20.97, hence option C gives the correct answer.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability.</u>

Hence, according to the table, the expected value is given by:

E(X) = 12 x 0.08 + 18 x 0.15 + 20 x 0.31 + 22 x 0.08 + 24 x 0.15 + 25 x 0.23 = 20.97.

More can be learned about the expected value of a discrete distribution at brainly.com/question/26660401

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7 0
2 years ago
The sum of two rational number is 0 and one of them is -4/7,find the other<br>​
Anettt [7]

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6 0
4 years ago
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Ok....sooo. first. you do a line and number it.
--------------1-------------2-----
as you see the first number in the graph is 1.5 sooo it goes in between number 1 and 2 because its in the middle.
The second is 1.6 sooo this number goes next to 1.6
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now idk if this answer the question but i hope someone else makes sure its correct
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6 is the correct answer
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3 years ago
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