Given that the arc length is 4.189 cm and the radius is 3 cm, the size of the arc will found as follows;
C=theta/360 πd
suppose:
size of arc=theta=x
d=3*2=6 cm
hence;
4.189=x/360*π*6
4.189=0.0524x
x=4.189/0.0524
x=80.004°
The size of the arc length is 80.004°
[ Answer ]

[ Explanation ]
- Simplify / Solve: (5 ÷ 5) ÷ 5 · (
- 5)
--------------------------------
(
- 5)
- Apply Rule (
= 1):
= 1
(
- 5)

1 · (
- 5) = 20
= 
20 ÷ 5
= 4
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The answer to this question is C
Because you are supposed to do division first following PEMDAS so 12÷2=6 then you would do 2+6=8 SO THE ANSWER IS C
Some of the answers are going to be negative fractions, and some are going to be positive. I can't show the work on here right now but I hope that this helped a little bit. If you have any further questions then let me know and I can try to help you!
A quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression.