Answer:
y = 28 degrees
x = 28 degrees
Step-by-step explanation:
A right angle = 90 degrees
90 degrees - 62 degrees = 28 degrees
This is for both x and y because 62 degrees occupies both the right angles.
1.33333333333 is the answer
Answer: A. 51%
Step-by-step explanation:
Area of circle =
, where r = radius of the circle.
In the figure below, we have the complete question.
According to that,
Radius of outer circle = 7ft
Radius of inner circle = 5ft
The probability that the thumbtack will be placed on the inner circle
[π is canceled from numerator and denominator
in percent, 
So, the probability that the thumbtack will be placed on the inner circle = 51%
Hence, the correct option is A. 51%.