Answer:
5/6
Step-by-step explanation:
There are six sides on a die, and they are asking the probability of not rolling a 4. So it would be 5 out of 6
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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.
It's 3/4 because (y2-y1)/(x2-x1)