For the equation it would be y=my+b
19-4c=17
-4c=17-19
-4c=-2
c=-2/-4
c=0.5
or
c=1/2
Answer:
16.9 m
Step-by-step explanation:
Start with a half a circle. The central angle of a semicircle is 180 deg.
Now subtract 21 deg on each side.
180 - 21 - 21 = 138
The central angle is 138 deg.
The radius is 7 m.
Now we use the formula for the length of an arc of a circle given the radius of the circle and the central angle of the arc.



Answer:
graph A
Step-by-step explanation:
if you use the substitution method is graph A