Answer:

Start by breaking the radicand into assumed positive values.

Simplify.

Answer:

Step-by-step explanation:
<em>Hey there!</em>
Look at the image below↓
By looking at the image we can tell the PR expression is
.
<em>Hope this helps :)</em>
Answer:
x=6 and z=107
Step-by-step explanation:
From the figure or diagram we can say that
z+15x-17=180 ---(1)
z+11x+7=180 ---(2)
Subtracting (1) and (2)
z+15x-17-(z+11x+7)=180-180
4x-24=0
4x=24
x=6
Substitute x=6 in (2)
z+11(6)+7=180
z+66+7=180
z=180-73
z=107