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sasho [114]
3 years ago
10

PLEASE HELP!!!

mula1" title="\frac{9}{x-6} = \frac{3}{x-10}" alt="\frac{9}{x-6} = \frac{3}{x-10}" align="absmiddle" class="latex-formula">

Mathematics
2 answers:
Elodia [21]3 years ago
5 0
I hope this helps :)

MrRissso [65]3 years ago
3 0
Um 12 im pretty sure
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Answer:

Sleep hours per night is independent.

Step-by-step explanation:

Given the data:

Hours of Sleep 39 or younger 40 or older

> 6 _____38 36

6 to 6.9 _ 61 58

7 to 7.9 __76 74

8 or more 65 92

The Chisquare statistic is to be used to perform the analysis :

The hypothesis :

H0: Sleep hours per night is independent

H1: Sleep hours per night is not independent

χ² = (observed - Expected)² / Expected

To save computation time. We could use a Chisquare calculator to perform the analysis :

The test statistic = 4.0061

The degree of freedom = (row - 1) * (column - 1)

Degree of freedom = (4-1)*(2-1) = 3*1 = 3

The Pvalue = 0.261

Since, Pvalue > α ; We fail to reject the H0 ;and conclude that sleep hours per night is independent.

______________total ___%

> 6 _____38 36__ 74 __ 14.8

6 to 6.9 _ 61 58 __ 119 __23.8

7 to 7.9 __76 74___150__30

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7 0
3 years ago
What is the midpoint of a segment with These endpoints (-12,-3) and (3,-8)
Savatey [412]

Answer:

(\frac{-9}{2},\frac{11}{2})

Step-by-step explanation:

you have to use the midpoint formula which is

(\frac{x1+x2}{2},\frac{y1+y2}{2})

so you plug your numbers in

(\frac{-12+3}{2},\frac{-3+-8}{2})

Add the tops

(\frac{-9}{2} ,\frac{-11}{2} )

if possible simplify

and that is your answer

8 0
2 years ago
0<br> 1<br> 2<br> 3<br> 4<br> 5.<br> 6<br> I don’t know what I’m doing
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Step-by-step explanation:

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2 years ago
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Brent is considering buying a new circular track for his model train. He estimates that the model's circumference is about 3 tim
Dvinal [7]

Answer:

Answer is D or a

Step-by-step explanation:

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2 years ago
What us the answer to x + 6 = - 10
Vlad [161]

Answer:

-16

Step-by-step explanation:

8 0
3 years ago
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