Answer:
D) $8.20
Step-by-step explanation:
82 x 0.1 = 8.2
I can't see the whole graph
You do 2x20 which is basically 2x2 (4) add a zero and your answer is 40
Hope I helped you. You didn't even asked any question.
Answer: 31.43 cm
Step-by-step explanation:
The length of an arc is calculated using the formula:
X 2
r
where : theta is the angle in degree
r = radius
If the angle is given in Radian , the length can be calculated using the formula:
L = r∅
Since , the angle is given in degree , we will use the first formula.
L =
X 2
r
L =
X 2 X π X 15
L =
X 2 X
X 15
L = 
L = 31.42857143
L ≈ 31.43 cm