Answer:
the second option
Step-by-step explanation:
![\sin(20) = \frac{x}{18} \\ x = 6.15 = 6.2](https://tex.z-dn.net/?f=%20%5Csin%2820%29%20%20%3D%20%20%5Cfrac%7Bx%7D%7B18%7D%20%20%5C%5C%20x%20%3D%206.15%20%3D%206.2)
Answer:
Step-by-step explanation:
c
Answer:
f(x) = -5x +48
Step-by-step explanation:
A fairly easy way to write the equation of the perpendicular line is to swap the x- and y-coefficients, negating one of them. Then choose the constant in the equation to make it true at the given point.
<h3>Swapped coefficients</h3>
In this instance, we find it convenient to leave the coefficient of y as positive.
5y = x -10 . . . . . . original equation
y = -5x +c . . . . . . with coefficients swapped, x-coefficient negated
<h3>New constant</h3>
At the given point, the equation becomes ...
8 = -5(8) +c
48 = c . . . . . . . add 40
<h3>Equation of the perpendicular line</h3>
The equation of the line is then ...
y = -5x +48
f(x) = -5x +48 . . . . . . in functional notation
If we have 360 degrees and need to divide it into 12 equal angles, then all we have to do is a simple division problem.
360 / 12 = 30
There are 30 degrees in each angle.
Hope this helps!