The value of y is 50
The angle measurement of angle AOB is 100°
<h3>Circle Geometry </h3>
From the question, we are to determine the value of y and the measure of angle AOB 
From one the circle theorems, we have that 
Angles in the <u>same segment</u> are equal
In the given diagram, x° and y° are angles in the same segment
∴ x° = y°
From the given information, 
x = 50 
∴ y = 50 
Hence, the value of y is 50
Also, from another circle theorem, 
Angle at the <u>center</u> is twice the angle at the <u>circumference</u> 
∴ ∠AOB = 2x° = 2y°
Then,
∠AOB = 2×50°
∠AOB = 100°
Hence, the angle measurement of angle AOB is 100°
Learn more on Circle Geometry here: brainly.com/question/17074363
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-.5 or negative 1/-2
same thing just in a dec and frac
        
                    
             
        
        
        
Answer:
a = -4
b=-29
Step-by-step explanation:
<h3>Complex number:</h3>
 First write the radicals in simplest form.
i² = -1

                                                           
    
 
        
             
        
        
        
I believe it would be 115 plus 56. subtract that from 180. i believe thisbis your answer