Answer:
1230.88
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h where r is the radius and h is the height
V = (3.14) * (7)^2 * 8
V = 3.14 * 49*8
V =1230.88
Answer:
First answer.
Step-by-step explanation:
We know that a complete rotation would be 360°. If the figure is being rotated 90°, this is a quarter of a complete rotation.
When looking at the given answers, only the first answer seems logical.
It's 80
the 5 would make the 9 turn into a 0 the. the 7 to an 8
In the ODE, solve for 
:
The Wronskian is then
Differentiating the Wronskian gives
Substitute 
into the equation for , then substitute 
into 
:
which is another separable ODE; we have
Given that 
, we find
so that
and so
I’m sorry but I’m confused
