8)
is -0.896 radians
9) length of arc is 41.91 cm
Solution:
8)
Given that,

is in quadrant 4
To find: 
From given,

Thus value of
is -51.34 degrees
Convert degrees to radians

Thus
is -0.896 radians
9)
From given,
radius = 15.4 cm

<em><u>The length of arc when angle in radians is:</u></em>

Thus length of arc is 41.91 cm
The answer is -.75 because y=mx+b, and the slope is m.
Step-by-step explanation:
1. 0.08703 killograms
2. Decameters
3. Liters
8x+800-3=837
8x=837-797
8x=40
x=40/8
x=5