Answer:
cm
Step-by-step explanation:
C = 
C = 
We know that
In any quadrilateral where the vertices are on the circumference of a circle, the opposite angles add up to

degrees.
So,
in this problem

therefore
the answer is
Answer:
8
Step-by-step explanation:
this 3 qub root of 512 is 8
Answer:
-15
Step-by-step explanation:
The negative is outside of the absolute value signs/lines. The absolute value is how far the number is from 0. So, it doesn't matter whether or not there is a negative sign inside of the absolute value lines it will always be positive. But, if it's outside of it, then it will be negative.