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Scorpion4ik [409]
2 years ago
5

What’s the Variace of 7, 5, 11, 1, 11

Mathematics
1 answer:
lara31 [8.8K]2 years ago
8 0
The mean is 35/5=7

v=((7-7)^2+(5-7)^2+(11-7)^2+(1-7)^2+(11-7)^2)/5

v=(0+4+16+36+16)/5

v=14.4
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algol [13]

Step-by-step explanation:

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total cost to make n videos = $6500 + $1500 + $4n = (8000 + 4n) dollars

overall cost to make each video

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Hence,

P(500) = [8000 + 4 (500)] / 500 = (8000 + 2000) / 500 = $20

This means that in order to break even selling 500 DVD's he has to sell each one for $20

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3 years ago
Subtract 2x - 6 from 4x + 9
Liono4ka [1.6K]
Answer:

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Explanation:

(2x - 6) - (4x + 9)

2x - 6 - 4x - 9

-2x - 15
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Answer: 48m2 + 56m

Step-by-step explanation:

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