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Rufina [12.5K]
3 years ago
10

Can anyone answer these two questions for me ?

Mathematics
2 answers:
Nookie1986 [14]3 years ago
8 0

Answer:

9. A and 11. c

Step-by-step explanation:

I hope this helps

omeli [17]3 years ago
4 0

Answer: both c

Step-by-step explanation:

           9 is u can multiply 6x 8 when u cut one of the rectangles into 4s, u can see that each of the piece is worth 12, so 48+36+36=120

           11 Is u can see 1 square unit is each of the boxes. U can infer that 4 of the square units will be able to fit in that shape.

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frutty [35]

Answer:

The correlation coeffcient for this case was provided:

r =0.934

And this coefficient is very near to 1 the maximum possible value, so then we can interpret that the relationship between the entrace exam score and the grade point average are strongly linearly correlated .

We can also find the r^2 who represent the determination coefficient and we got:

r^2 = 0.934^2= 0.872

And the interpretation for this is that a linear model explains appproximately 87.2% of the variability between the two variables

Step-by-step explanation:

Previous concepts

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

And in order to calculate the correlation coefficient we can use this formula:  

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}  

The correlation coeffcient for this case was provided:

r =0.934

And this coefficient is very near to 1 the maximum possible value, so then we can interpret that the relationship between the entrace exam score and the grade point average are strongly linearly correlated .

We can also find the r^2 who represent the determination coefficient and we got:

r^2 = 0.934^2= 0.872

And the interpretation for this is that a linear model explains appproximately 87.2% of the variability between the two variables

8 0
3 years ago
Acute isosceles<br> obtuse isosceles<br> acute scalene<br> equiangular equilateral
zhenek [66]

Answer:

obtuse isosceles

Step-by-step explanation:

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7 0
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How do you add fractions with whole and mixed numbers? Trying to help my young son with homework.
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Make the mixed number to a whole fraction if you can or e.g. 2 3/3= 3 and add the whole number to the sum e.g. 3+4=7
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Answer:

-4-6x

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6 0
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Order the terms so that each consecutive term builds off the previous term
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A line extends forever in both directions.(Infinitely many points that extend forever in both directions)

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5 0
4 years ago
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