Answers to this equation

Mathematics

2 answers:

Ad libitum [116K]3 years ago

7 0

Answer:

3x-24

Step-by-step explanation:

x (x) =x then it would be 3x-24

Tju [1.3M]3 years ago

3 0

Answer:

for completing the square it would be

$(x + x) ^{2} - 13$

however if you were to find the roots it would

$x = 2.60555127 \: and \: - 4.60555127$

however the picture is unclear on what to do so these may help

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dem82 [27]

Answer:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

3/8=9

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slamgirl [31]

The regression equation of Y on X is given by the following formula:

$Y-\bar{Y}=b_{yx}(X-\bar{X})$

Where byx is given by the formula:

$b_{yx}=\frac{N\sum^{}_{}XY-\sum^{}_{}X\sum^{}_{}Y}{N\sum^{}_{}X^2-(\sum^{}_{}X)^2}$

Where N is the number of values (N=8). We need to find the sum of X values, the sum of Y values, the average of X, the average of Y, the sum of X*Y and the sum of X^2.

The table of values is:

The values we need to know are on the following table:

By replacing the known values in the formula we obtain:

$\begin{gathered} b_{yx}=\frac{8\cdot26125-167\cdot995}{8\cdot4649-(167)^2} \\ b_{yx}=\frac{209000-166165}{37192-27889} \\ b_{yx}=\frac{42835}{9303} \\ b_{yx}=4.6 \end{gathered}$

Now, the average of X and Y is the sum divided by N, then: