Answer:
Step-by-step explanation:
Good question. It is important to know the answer.
The 9 means that there are a total of 20 objects. You want to select just 9 of them.
The situation is well described by C.
Answer:
A. 51°
Step-by-step explanation:
By the theorem of intersecting secants.
Answer:
the storage tank is a cylinder.
The formule to calculate the volume is:



Answer:
B. the second one
Step-by-step explanation:
Point, line and plane are the undefined terms