Step by step explanation:
9
+6x+5=0
Uses the "a", "b", and "c" from "a
+ bx + c", where "a", "b", and "c" are numbers
So in this case:
a would be 9
b would be 6
c would be 5
Then plug in from there..
Another way you can do it is using the square method.
Answer:
Its 2πr^2
Step-by-step explanation:

X-int =(-3,0)
Y-int=(0,_1)
Slope: _1/3
Things to remember the sum of the measures of the interior and exterior angles at each vertex is 180 (supplementary angles)
add and equal to 180
3x-5+5x+17= 180
8x+12=180
8x= 168
x=21
substitute in the algebraic expression for exterior angle
3(21) -5=
63-5=58
58 degrees is the exterior angle
hope this helps