-36×+9 is equivalent to this question.
A quadrilateral is a 4-sided figure. so yes, i'd say that is a quadrilateral
The perpendicular line would have a slope of 1/3.
Perpendicular lines have opposite and reciprocal slopes. So first we have to find the slope of the original line. We can do this by solving the equation for y.
5x - 9y = 1
-9y = -5x + 1
y = 5/9x - 1/9
To do the opposite, take the original slope (5/9) and change the sign (-5/9).
To do the reciprocal, take the slope we changed (-5/9) and flip it as a fraction (-9/5).
This gives us a new slope of
4 = <span>√16
</span>√16 * √3 = <span>√48
</span>√48 - <span>√27</span>
Find 10% then times it by four then find 4% and add it on to get 320.21