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Rama09 [41]
3 years ago
7

Evaluate: Sigma 50 over 1 (4n - 1) = [?]

Mathematics
1 answer:
iogann1982 [59]3 years ago
7 0

Answer:

50 over 1 (4n - 1) = 5050

I hope I helped you^_^

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The movie theater has 250 seats. 225 seats were sold for the current showing. What percent of seats are empty?
disa [49]

Answer:

25

Step-by-step explanation:

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3 years ago
What is the name of a survey that includes all members of a population being studied
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That would be a census!
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Can someone plz help me with #2, #3, #4, #14
Drupady [299]
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3 years ago
Please help!!!!!!!!!!!
boyakko [2]

Answer:

  (7√6)/2

Step-by-step explanation:

The side ratios in these special triangles are ...

  30°-60°-90° triangle: 1 : √3 : 2

  45°-45°-90° triangle: 1 : 1 : √2

This tells you the length of the horizontal line is 7√3, and the value of x is ...

  (7√3)/√2 = (7√6)/2

_____

<em>Additional comment</em>

Call the length of the horizontal line "y". Then the given ratios tell you ...

  7 : y = 1 : √3   ⇒   y/7 = √3/1   ⇒   y = 7√3

and

  x : y = 1 : √2   ⇒   x/y = 1/√2   ⇒   x = y/√2

When we rationalize the denominator, we get ...

  x = (y√2)/2 = ((7√3)√2)/2 = (7√6)/2

4 0
2 years ago
2x+9=3(4x-7) help show work
ivann1987 [24]

Answer:

2x+9=12x-21

-2.      -2

9=10x -21

+21           +21

30=10x

Divide by 10 on both sides

30/10

x=3

Step-by-step explanation:

3 0
3 years ago
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