It would be 100 because 360-60=300 then 300 divided by 3 equals 100
State the vertex and axis of symmetry of the graph of y=ax^2+c
General form of quadratic equation is 
There is no bx in our given equation, so we put 0x
Given equation can be written as 
a=a , b=0
Now we use formula to find vertex


Now we plug in 0 for 'a' and find out y

So our vertex is (0,c)
The axis of symmetry at x coordinate of vertex
So x=0 is our axis of symmetry
Answer:
6.58 x 10^-3
Explanation:
Moving the decimal place till it’s in front of the 6
The measurement for The measurement for arc AC is 99.8