saltedcaramel60
28.01.2020 •
Mathematics
Michael wants to eliminate the variable y from the system below by adding. first, he will have to multiply one of the equations by a number. which step will enable him to eliminate y by adding?
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Ответ:
7x - 6y = 8
2x + 2y = 6multiply by 3
7x - 6y = 8
6x + 6y = 18 (result of multiplying by 3)
add
13x = 26poof...the y's have been eliminated :)
x = 2
Ответ:
No
Explanation:
It is not reasonable to use the line of best fit to make predictions.
The correlation coefficient for the data is close to zero.
The correlation coefficient measures how well a line fits a set of data.
The correlation coefficient suggests that the relationship between the two variables is weak.