I'm redoing some homework problems for my test tomorrow, and I cannot remember how to do this!!
Please help me!!
Find the volume of the solid generated by revolving the plane region bounded by the given equations about the indicated line. Include a sketch to help in determining the most efficient method.
1) y = x, y = 0, x = 4
a. about the x-axis
b) about the y-axis
c) about the line x = 4
d) about the line x =6
If you don't have time to help me with all of it, please help with at least a and c!! I really need to know how to do this!
Thank you!!4 AnswersMathematics9 years ago
I am applying to St. Bonaventure University and I accidentally checked the regular decision box under Spring Semester (without seeing the spring part), instead of "rolling admission," under Fall semester which I was supposed to check.
This is terrifying!! I've been applying to so many schools that I've become accustomed to the "regular decision." Of course, I didn't consciously make this mistake and I must've skimmed through the application many times before submitting.. urgh!
What should I do?? Should I call the school? Will they still admit me in special programs they offer after I made this mistake??1 AnswerStudying Abroad9 years ago
Please help! I've tried to do this problem over and over and I just can't get it right.
This is the one:
Find y' if y = ln(x^2 + y^2)
y' is the same as dy/dx. I know you have to use implicit differention, but what do you do after that?
The answer is:
y' = (2x)/(x^2 + y^2 - 2y)1 AnswerMathematics9 years ago
So, my teacher told me that she doesn't offer extra credit. In any other case, that would be fine and I would completely understand, but what bothers me is how she answered me. She told me how it was a "college-level course" and she kind of almost scoffed at me for trying to ask her sincerely and very respectfully, (as I did).
The only reason I asked her was because I did poorly on a test and ALL of the AP classes I had taken in the past (ALL of them, and ALL of them harder and even more "college level" than her class) had offered extra credit. I should also mention I got 5's on all the AP exams after having taking those classes, so I'm not a lazy student.
She is known to be very incompetent and clueless about things (part of the reason I didn't do well on the last test. She didn't teach anything), and I feel like she's trying to make the class "harder" by not teaching and not offering extra credit, as it's her only second year of "teaching" the AP class, and she still really doesn't know what she's doing.
Her class is not even college-level considering the course work and the nature of the tests (if you know the information. I had been having a bad week the day of the exam and I had two other tests on the same day. which is why I did poorly.).
So...what should I do?? I should mention that other people also have a problem with her and her minimal knowledge of the subject, but do better on the tests because they're better at self-teaching and test-taking than I am.
I had been thinking of talking to a counselor about this for a long time, but if I switch out now, I'll get a W (withdrawal) on my transcript. :(1 AnswerTeaching9 years ago
I did much better on my SAT compared to my ACT. However I had decided to take ACT because people told me that I would be the type that would do better on the ACT. I didn't do well at all though!
So my question is, do colleges have to even know about my ACT score? Or is it just something I can keep to myself?
I just want to submit my SAT score to colleges that I'm applying to. That's ok right?1 AnswerStandards & Testing9 years ago
I have a lot of trouble concentrating at school. It also takes twice as long for me to study for tests, compared to others. When I have a textbook in my hands, I have to give all the energy I can muster to get through it, but usually I'm not able to, and end up getting distracted.
I'm always the last one to finish tests, especially in math class. Whenever there's a certain method I have to remember, I get it jumbled up in my head (even if I studied). Also, if there are multiple steps to a problem, I have difficulty organizing them in my mind, so I'll do certain steps before others etc.
When I was little, in a regular class, I used to finish my work quickly and then I used to walk around the classroom and touch the teacher's things, etc., the teacher used to get mad at me, but I really couldn't help it. I was restless. I got placed in an advanced class after 3rd grade, and I've heard that people with ADD who have slightly higher IQ's can mask it better, and I think that might be the case with me (not that I'm saying I'm smart arrogantly, it's just a thought). I have good grades, but it's only because I spend ALL my time studying. I can't do anything else, because I simply can't sacrifice any time, as it takes me so long to study.
Please help! Thank you!1 AnswerPsychology9 years ago
I have a Diana F+ camera, taking 120 mm film. I was loading the film myself using the following method: http://www.youtube.com/watch?v=OispKRvjMys
It went great and I closed the lid and started advancing the film (btw I'm using Fujifilm Pro 400H color film). If you've used the film, u kno it gives you like images and symbols and arrows and stuff before you move to the first frame.
The film seemed to stop advancing at the "arrows" symbol. (before it got to the first frame), so like the moron I am (i'm new to photography), I thought I had loaded it wrong, so I decided to load it in a room with subdued light (not totally dark). I figured it would be fine since it hadn't advanced to frame 1 yet. I tried to look at it for about 2-3 seconds, realizing the film was just fine, and then put the lid back on. (I didn't see the number 1 symbol by the way when I opened the rear door.)
And now I'm freaking out that my WHOLE roll of film is ruined. So, is it?6 AnswersPhotography9 years ago
I got a 2150 on my SAT. I have 2 months to take the ACT, which I'm completely unfamiliar with. It's really important I do well on this (34 or higher). Should I opt for the "ACT Cramming" and "Crash Course" kinda books or should I buy a complete prep guide at this point?
My main question: Which would be better for me? The books geared towards students aiming for higher scores or just general prep books??2 AnswersStandards & Testing9 years ago
I'm planning to write a blog that's centered around being a muslim teenager. I'm probably going to write A LOT about food, however.
I'll write about various cultural dishes my family and I traditionally eat during this time.
But I absolutely cannot think of a good name. They all sound cheesy and generic.
I thought of "The Islamic Bite" (since I'm going to be writing about food).
I also like the idea of using the word "morsel" in the title, too. Like, The Serendipitous Morsel.
Also, I don't want the title to be centered too much around religion. If you can subtly hint at it, or you just have a really good one, please share, however.
Thank you so much!2 AnswersProgramming & Design1 decade ago
I need to know if there were any war heroes in world war 1 on the central powers side (i.e., Germany, Austria-Hungary).
I've found many on the allied powers side, that have recieved the Victoria Cross and such (mostly British). Now I need more German and Austrian heroes of the war.
Heroes, meaning, ones who were brave or who were real problem-solvers or who saved lives. The definition's pretty broad.
Thanks!2 AnswersMilitary1 decade ago
Hi. I've been having a lot of trouble with this problem. I'm not sure if i should use D=st or some other equation for this problem.
Here it is:
A machine gun fires 10 rounds per second. The speed of the bullet is 300 m/s. What is the distance in the air between the flying bullets?
I'm really confused. Do I use T = 1/f or something else?
You guys are my last hope.
I've spent all night trying to figure this one out. You guys are my only hope.
"A 1000.0 kg car moving at 20.0 m/s slams into a building and comes to a halt."
What impulse acts on the car?
And, what is the force of impact on the car?
They say that one of these may not be able to be answered.
Thank you so much!
I've been stuck on this for hours. You're my last hope. Please help me. Okay, I'm given that there is an average force of 10.0 N exerted on a cart for 2.5 s. I'm also given that the mass of the cart in 2.0 kg and that the cart is initially at rest.
How do I calculate the final speed using only the force exerted, the time, and the mass?
Thank you so much!
I'm doing a project about how France imperialized Indochina, and I was wondering what Indochina gained from France's occupation in their territory. If they gained anything, who, SPECIFICALLY gained any benefits.
Like, for example, did the merchants gain the most or did the government gain as a whole? Did they gain a better economy?
Oh, and what happened to the poor people? Did they gain or lose?
Thanks!2 AnswersHistory1 decade ago
I was hurrying to turn in an assignment, as my teacher said we would fail if we didn't turn it in on time, and I accidentally tripped somebody, while running (yes, I know; never run in the classroom, but I did...:(
I thought I had just bumped into somebody so I said sorry quickly and continued to walk towards my teacher. However, when I turned around I saw my friend helping her up.
I felt SO horrible! If I had known she was on the floor, I would've helped her up, even if I failed the assignment. When I returned I apologized as sincerely as I could. She made a deal with me that if I peer-edited her essay, I would be off the hook. I felt so, horribly guilty. She's always so nice to me.
I don't know what to do... because although I said sorry and promised to edit her essay, she might think I'm this horrible person who would rather get an A+ for her assignment rather than help someone up, and I'm not that type of person. I don't want her to think I am.8 AnswersFriends1 decade ago
I'm writing an essay on George Orwell's message in "Shooting an Elephant"
In the conclusion paragraph I have to relate his message (imperialism oppresses and destroys the freedom of all those involved) to today.
I have no idea how to relate it to today, so can you guys help me out?
Thanks?3 AnswersHistory1 decade ago
In the Battle of Yorktown around September 1781, would General de Lafayette be on land or water? That is, in september of the battle?
Please help! I've looked a lot online, but it's never very clear. Whether it was a naval attack or a hand-to-hand combat. Or was it an attack at all?
Please help!2 AnswersHistory1 decade ago
I'm guessing it was around 1781-1782, but I need to know which of these two the ban was placed. Please help me out! I've looked everywhere but I'm never given an exact date!
BTW, this is NOT homework.1 AnswerHistory1 decade ago