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zubka84 [21]
3 years ago
6

Which linear equation best represents a trend line for the data in the scatter plot?

Mathematics
2 answers:
givi [52]3 years ago
8 0
It would be y= -1/3x+12
ryzh [129]3 years ago
5 0
The anwser should Y= -1/3x+12
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196 divided by 3.5 show your work
Ilya [14]

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56

Step-by-step explanation:

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What is the measure of 162<br> A. 324°<br> B. 162°<br> O C. 81°<br> D. 72°
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Step-by-step explanation:

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Alexxandr [17]
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Determine if the matrix below is invertible. Use as few calculations as possible. Justify your answer. [Start 4 By 4 Matrix 1st
Len [333]

Answer:

Yes, it is invertible

Step-by-step explanation:

We need to find in the matrix determinant is different from zero, since iif it is, that the matrix is invertible.

Let's use co-factor expansion to find the determinant of this 4x4 matrix, using the column that has more zeroes in it as the co-factor, so we reduce the number of determinant calculations for the obtained sub-matrices.We pick the first column for that since it has three zeros!

Then the determinant of this matrix becomes:

4\,*Det\left[\begin{array}{ccc}1&4&6\\0&3&8\\0&0&1\end{array}\right] +0+0+0

And the determinant of these 3x3 matrix is very simple because most of the cross multiplications render zero:

Det\left[\begin{array}{ccc}1&4&6\\0&3&8\\0&0&1\end{array}\right] =1 \,(3\,*\,1-0)+4\,(0-0)+6\,(0-0)=3

Therefore, the Det of the initial matrix is : 4 * 3 = 12

and then the matrix is invertible

4 0
3 years ago
Three of the following statements contain inaccurate myths about randomness.
Luda [366]

Answer:

where are the following statements?

Step-by-step explanation:

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