Lets get started :)
We need to isolate t from x =

at²
Take 2 to the left-hand side { Do multiplication since you see division }
2x = at²
Take a to the left-hand side { Do division since you see multiplication }

= t²
Take square root since t is to the power of 2

= t
Answer:
As shown in picture, the circle is divided into 2 arcs, one of them is 142 deg.
Then the other one A is 360 - 142 = 218 deg (property of sum of all arcs on circle).
As the property of angle created by a tangent line:
x = (1/2) x arc A = (1/2) x 218 = 109 deg
Hope this helps!
:)
Pretty sure it’s figure 2
Answer:
86
X.06
_____
516
+ 0000
_________
05.16
Step-by-step explanation: