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ser-zykov [4K]
3 years ago
14

Plz help third time putting this

Mathematics
1 answer:
Law Incorporation [45]3 years ago
8 0
LD= 8.9 ! hope this helps and i would rlly appreciate brainliest!!!
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X + 8(y + 4) − (5y − x)
Anna11 [10]

Answer:

2x+3y+32

Step-by-step explanation:

5 0
2 years ago
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A tablet computer costs $189.69 including tax. It is marked up 30%.
Alina [70]
The correct answer is D. $246.6
(It is actually $246.597 but that is rounded to 246.6)
$189.69 x .3 = 56.907
$189.69 + $56.907 = $246.597
3 0
3 years ago
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An ornithologist has 4 bird feeders at separate locations. She wonders if birds are equally likely to visit each of the feeders.
Marianna [84]

Answer:

the x² test statistic 13.71

Option a) 13.71 is the correct answer.

Step-by-step explanation:

Given the data in the question;

Feeder                     1      2      3       4

Observed visits; o_i  60   90   92    58

data sample = 300

Expected e_i = 300 / 4 = 75

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.

7 0
2 years ago
I have a piece of material 17 ft i only need 5/8 of it how much is that
lukranit [14]
5/8 of 17 is 10.625!
3 0
3 years ago
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Write a linear function that relates y to x <br><br> y=
son4ous [18]

y=x-2

hope this helped :)

7 0
2 years ago
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