X= 2.737 - look on the website "Tiger algebra for the answer by typing in the question
add all numbers and divide by the count of numbers.
The prallelogram whose adjacent sides are equal and one vertex angle is 90 degrees is a square.
The value of angle 1 is 90 degrees as the diagonal of the square intersect at 90 degrees.

The value of y is 23.
The diagonal of the square bisect the vertex angle hence the angle of 3x is 45 degrees.

Thus, the value of x is 15 degrees.
The value of 12z is 45 degrees.

Thus, the required value of z is 3.75 degrees.
Answer:
1
Step-by-step explanation:
(-4) - (-6) - (2-1)
-4 + 6 -2 +1
1