Answer:
First we have to calculate z
z + 69° = 180°
z = 180° - 69° = 111°
Now that we have 2 out of 3 angle already, we can easily calculate x which is the measurement of the third angle we are looking for:
23° + 111° + x = 180°
x = 180° - 23° - 111°
x = 46°
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Step-by-step explanation:
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Answer:
D. 
Step-by-step explanation:
The given expression is;

This is the same as;

The denominators are the same.
Subtract the numerators and write one denominator;

Rewrite to get;
