Answer:

Step-by-step explanation:
Diameter = 19 cm
Radius = 19/2 = 9.5 cm
Volume = 
V = 
V = 
V = 3591.4 cm³
105 degrees is the answer
Step-by-step explanation:
The answer for third is D, you have multiple choice in fourth which I can't see at all...
Answer:
6
Step-by-step explanation:
Substitute n for 3
A(n) = 3/2(-2)^(n-1)
A(3) = 3/2(-2)^(3-1)
A(3) = 3/2(-2)²
A(3) = 3/2(4)
A(3) = 12/2
A(3) = 6