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svetoff [14.1K]
3 years ago
10

Substitution for -3x+y=-9

Mathematics
1 answer:
shtirl [24]3 years ago
4 0

Answer:

y=3x-9

Step-by-step explanation:


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Answer:

1. D

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Answer:

the x² test statistic 13.71

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Step-by-step explanation:

Given the data in the question;

Feeder                     1      2      3       4

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data sample = 300

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the x² test statistic = ?

X^2_{stat = ∑[ (o_i - e_i)²/e_i]

X^2_{stat = [ (60 - 75)² / 75 ] + [ (90 - 75)² / 75 ] + [ (92 - 75)² / 75 ] + [ (58 - 75)² / 75 ]

X^2_{stat = [ 3 ] + [ 3 ] + [ 3.8533 ] + [ 3.8533 ]

X^2_{stat = 13.7066 ≈ 13.71

Therefore, the x² test statistic 13.71

Option a) 13.71 is the correct answer.

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2 years ago
I am wondering how the different triangles could be different, can anyone explain?
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Answer:

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Since these are like-terms, they can be added together.

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