Answer:
31.4 cm
Step-by-step explanation:

Hence, length of arc = 31.4 cm.
Answer:
(0,2)
Step-by-step explanation:
The Y-intercept is the point that passes the Y-axis (vertical axis)
Answer:
The answer is 3x-27
Step-by-step explanation:
If the angles are vertical from each other it means they are congruent. 2x+30 is 63, you plug in the x, 2(30)+30. You do that to the second one and also get 63, 3(30)-27. Therefore 3x-21 is the answer.
Wouldn’t it just be a and b
For the experimental probability you must record the data that you collect by flipping your own coin, then you must find the probability of landing on either side. For example, the theoretical probability for the coin toss it will be 50% chance for either side. For the experimental it depends on your own results.