Answer:
I think the answer is 14.
To tell whether the <span>the sequence is arithmetic, we try to see if there is a common difference between the terms in the sequence. We do as follows:
1 1/2 - 1 1/3 = 1/6
1 1/3 - 1 1/6 = 1/6
Therefore, the sequence is arithmetic and the common difference is 1/6. Hope this answers the questions. Have a nice day.</span>
Since opposite angles are the same:
angle DEC = 130
We know angle BEC + AED = 360 - 130*2
Since angles in a circle add up to 360 degrees:
BEC + AED = 360 - 260
BEC + AED = 100
This means that BEC = 50 and
AED = 50
Now that we know 2 angles in the triangle CEB we can work out y:
y = 180 - 50 - 70
y = 60 degrees
The fraction Is already in its simplest form :)
They do not have any common factors
