H=36in
d=30in
V=?
________
V=πR²h=π(

)²h=π*15²30=π225*30=6750π (~20250in³)
Answer: V of fish tank is 6750π in³ (~20250 in³)
Answer:
hence cos ( 2 A ) = cos 2 A − ( 1 − cos 2 A ) = 2 cos 2 A − 1
Step-by-step explanation:Well we know that for two angles A , B
it holds that cos ( A + B ) = cos A cos B − sin A ⋅ sin B hence for A = B you get cos ( 2 A ) = cos 2 A − sin 2 A But sin 2 A = 1 − cos 2 A
Answer:

Step-by-step explanation:

<h3>Hope it is helpful....</h3>
Answer:
a)8
b)7
c)26
d)60
Step-by-step explanation:
The Venn Diagram is attached
For number of people who saw a single movie only
See the number associated with the movie name excluding all intersection parts
For people who watched only 2 movies exactly
Sum all the intersection parts of any 2 circle parts=6+12+8=26
For total number of students surveyed
Sum up every number in the Venn diagram including the number 5 outside 3 circles(it represents that 5 people did not watch any of the films)
=7+12+10+6+4+8+8+5=60
Answer:
omg
Step-by-step explanation:
omg omg omg omg omg what is this