I have this solution this solution here which has radius 2 instead of 4. Hope this might help.
y=(4-x^2)^(1/2) is the outer radius of the surface of revolution
<span>y=1 this is the inner radius of the surface of revolution </span>
<span>Now we need to know the interval of integration... </span>
<span>(4-x^2)^(1/2)=1 </span>
<span>4-x^2=1 </span>
<span>x^2-3=0, x=±√3 </span>
<span>V=p⌠f(o)^2-f(i)^2 dx </span>
<span>V=p⌠4-x^2-1 dx </span>
<span>V=p(3x-x^3/3) </span>
<span>V=(p/3)(9x-x^3), x=[√3, -√3] </span>
<span>V=(p/3)((9√3-3√3)-(-9√3+3√3)) </span>
<span>V=(p/3)(6√3+6√3) </span>
<span>V=(p/3)(12√3) </span>
<span>V=4p√3 </span>
<span>What has happened is that you have essentially removed a cylindrical tube with convex ends matching the curvature of the outer sphere...it isn't pretty, that's why we needed to use revolutions of solids to figure it out...It would be extremely difficult to figure this out otherwise...</span>
The answer to this question is C. 'Whose' in the sentence is possessive. Whose shows the ownership of the car. To put it simply, they are trying to find out who owns the car parked in front of their driveway.
Answer:
Find the paragraph below.
Explanation:
A Street Cleaner
Street sweepers are very important in the community. The job they do is important because it reduces pollution, gives a better appearance to our community, and increases jobs. Street cleaning is never an easy job but if we help each other, our community will be safe and clean. If I were a leader, I will give them rewards. As a young learner, I will be responsible for cleaning my own garbage. When we all help in our own little ways, we make the job of street cleaners easier.
Answer:
maby this will help
Explanation:
that one day that i first saw him standing thiermy heart lept out of my chest. it wasent until later that i finaly relized that we were ment to be.ok so this is proboply not how it happend. so truth to be told we kind of were rivals like as in forever. but it turns out that we were not so diffrent i mean we were both on the guys soccer team.yeah not the best way to meet people. I mean im a girl and kind of beat my former rival at a sport he has been playing his whole life.