aliyahaliyah54
03.11.2019 •
Mathematics
Find the equation of the line perpendicular to -9x+4y=8 that contains the point (9,7)
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Ответ:
Step-by-step explanation:
Equation of the given line is![\[-9x+4y=8\]](/tpl/images/0357/5781/545c8.png)
Slope of the line =![\[\frac{9}{4}\]](/tpl/images/0357/5781/b9d48.png)
Slope of the perpendicular line =![\[-\frac{4}{9}\]](/tpl/images/0357/5781/083c2.png)
Equation of the line perpendicular to the given line is![\[y=mx+c\]](/tpl/images/0357/5781/4b328.png)
But this line passes through (9,7)
Substituting the values in the equation:
=>![\[c=7+4=11\]](/tpl/images/0357/5781/3880a.png)
So the overall equation of the parallel line is given by![\[y=-\frac{4}{9}x+11\]](/tpl/images/0357/5781/d40de.png)
Ответ:
Helium, neon, argon, krypton, xenon, and radon are also noble gases, in order of density. These are termed noble gases as they're so magnificent that, in general, they do not react with something.
The number of valence electrons determines the number of elements in a set.The number of outer electrons decides the number of components in a period.The electrical configuration of both the element is 2,8,8.Their electron energy count is 8, indicating that it belongs to Group 8/O.Its electrons shell count is three, indicating it is in period (row) 3 Noble gases are elements in the Group 8/O family.Therefore, the answer is "Its chemical is categorized as a noble gas that belongs to row 3 of the periodic table".
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