Answer:
sin 60° = 1/2 √3
B. √3/2
Step-by-step explanation:
sin 0° = 0
sin 30° = 1/2
sin 45° = 1/2 √2
sin 60° = 1/2 √3
sin 90° = 1
Answer:
The area of the circular cross section of the pipe is 
Step-by-step explanation:
we know that
The area of the circle (cross section of the pipe) is equal to

we have
----> the radius is half the diameter
substitute


Answer:
B
Step-by-step explanation:
Volume = Volume of cylinder + Volume of semi sphere
= pi*r^2*h+(2/3)*pi*r^3
=pi*(4*12+16/3)=pi*53.3
Answer:
C. y = -1/3 + 1
Step-by-step explanation:
Parallel equations have the same slope.