Isolate z by itself:

To simplify variables with powers, subtract the smaller power from the bigger power:


The exponent will be
-3.
Answer:
Step-by-step explanation:
138/8 = 17.25
(1)^3 /(3)^3
(1x1x1)/{3x3x3}
1/27 hope it helps :))
Answer:
315 degrees
Step-by-step explanation:
Assume that the dial is a perfect circle and therefore makes a full 360 degree rotation. If the dial is already turned 45 degrees, the rotation angle required to return all the way to the initial position is:

You will need to rotate 315 degrees.
Two parallel lines A and B are crossed by another
line as shown in the attached figure. Angle 2 and 3 are equal, because they are
opposite angles, while angle 3 and 7 are also equal, because they are
corresponding angles, thus it is deduced that
angle 2 = angle 3
angle 3 = angle 7
So angle 2 = angle 7
<span>Hence fourth option is right.</span>