Answer:
(D) 120 degrees
Step-by-step explanation:
From the figure drawn, we have
∠ABC=60°
And ∠OAB=∠OCB=90° (angles made by tangent on the circle is 90°)
Thus, ∠AOC+∠OCB∠CBA+∠OAB=360° (Angles sum property of quadrilateral)



Therefore, the value of x is 
Hence, option D is correct.
Answer:
Step-by-step explanation:
x=-1 is the counter example as ((-1)2)^(1/2)=1 and not -1.
Answer: 59.98
Step-by-step explanation: :)
Answer:
66%
Step-by-step explanation: 2/3 is .66666666666666...
Answer:
3.472
Step-by-step explanation:
The angle of the semtrical cube times the number of 2 because of the number in the area. So the anser is 3.472.