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3 years ago

What do you do after multiplying in the elimination method?

Mathematics

2 answers:

Vladimir79 [104]3 years ago

7 0

Answer:

divide or add

Step-by-step explanation: pemdas

parenthesis

exponent

multiply or divide

add or subtract

Sedaia [141]3 years ago

4 0

Answer: You can multiply both equations by a number to get one of the x or y absolute values the same explanation

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Answer:

Check the explanation

Step-by-step explanation:

Following table shows the calculations:

Delta, X Southwest , Y X^2 Y^2 XY

45.96 38.76 2112.3216 1502.3376 1781.4096

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47.93 15.7 2297.2849 246.49 752.501

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52.17 44.34 2721.7089 1966.0356 2313.2178

47.36 18 2242.9696 324 852.48

Total 292 211.79 14245.6934 8559.1077 10392.0488

Sample size: n =6

Now

$S_{yy}=\sum y^{2}-\frac{\left (\sum y \right )^{2}}{n}=1083.27$

$S_{xx}=\sum x^{2}-\frac{\left (\sum x \right )^{2}}{n}=35.03$

$S_{xy}=\sum xy-\frac{\left (\sum x \right )\left (\sum y \right )}{n}=84.94$

The coefficient of correlation is :

$r=\frac{S_{xy}}{\sqrt{S_{xx}S_{yy}}}=0.436$

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Step-by-step explanation:

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What do you do after multiplying in the elimination method?​

What do you do after multiplying in the elimination method?