Can "he don't" be right in any case?
Which is correct: "he don't" or "he doesn't"?
There is a way to change top bar background opacity in ubuntu 20.04 lts.  I installed the hide top bar extension but is not a option to change it. Calculate expected values using logistic regression coefficients I want to get the following:    I tried the following  \[    a(i,k) \leftarrow     \min\Big\{0, r(k,k) + \sum_{i^{'} | i^{'}\notin \{i,k\}}\max\{0, r(i{'},k)\}\Big\} \]   and got    How can I make the part under the summation extend to left and right without making a space between plus and max as in the first figure? I am working on the following problem asked in an examination: "What is the maximum number of cylindrical pencils of 0.5 cm diameter that can be stood in a square shaped stand of 5cm × 5cm inner cross section? 1. 99    2. 121   3. 100    4. 105." A simple calculation yielded me the answer 100.  But the answer in the key is 105. I don't how such an answer is possible. Any hint please.....Thanks in advance! I am asked to solve the following question using central limit theorem. In an election between two candidates, A and B, one million individuals cast theirvote. Among these, 2000 know candidate A from her election campaign and vote unanimously for her.The remaining 998000 voters are undecided and make their decision independently of each other byflipping a fair coin.Approximate the probability pA that candidate A wins up to 3 significant figures.  It's easy to solve directly. PA = $\frac{0.5(10000-2000)+2000}{10000}$ = 0.501. However, I am quite confused about how to solve this problem by central limit theorem. "need + verb-ing" vs "need + [to be] + verb-ed" 1 That sofa needs cleaning again. 2 That sofa needs to be cleaned again.  Which of the above senteces sounds more natural? And, is &quot;to be&quot; always needed in structures like 2, as, for example, in:  2/a You need your head examined. 2/b You need your head to be examined. Best method for short time-series "Use self" doesn't work? I'm currently working with drivers in Blender 2.81 and want to use self but it doesn't work.   For example drive the rotation by the location, I'm adding a driver to the rotation, check the Use Self box and write self.location.x  Blender return the message: ERROR Invalid Python expression.  Have I missed something, is it a bug?  edit: What happens to Zhang ziyi (Jen) in  when she jumps off the cliff .. she dies? becomes immortal? Just before jumping what does she want Lo to become - a master?  Why does she jump off, guilt? Why have a letter in a word when it’s silent in pronunciation, like the b in debt?  Can anyone please clarify my uncertainty here? Why can't I adopt children despite having a steading in Falkreath? I bought two pieces of land. One from Morthal, and one from Falkreath. Morthal was the first plot of land I purchased. I only finished half of it. I bought the plot of land in falkreath because I liked the nature better. I finished the house completely in Falkreath. Every time I try to adopt a child off the streets it keeps saying "I have a place but no room for you" Even though I have the bedrooms in my Falkreath house. Why can I not adopt a child and have him/her live at my house in Falkreath? Beamer -- not indenting itemize in a single environment The output in the MWE posted at the end of this post is shown below. Notice how the default indentation from itemize gives an asymmetric slide w.r.t the spacing to the left and right of the itemize environment. How can I push the bullet points to the left so that the spaces to the left and right are the same? Such a solution would ideally be:   implementable on a one-off basis, so that it is applied when necessary (since some itemize environments should be given the default indentation) independent of the margin size, so that the solution doesn't need to be changed when the margin size is changed     \documentclass{beamer}   \begin{document}  \begin{frame}{A title} \begin{itemize} \item Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod \item tempor incididunt ut labore et dolore magna aliqua. \item Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi \item ut aliquip ex ea commodo consequat. \begin{itemize} \item Duis aute irure dolor in reprehenderit in voluptate velit esse \item cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat \end{itemize} \end{itemize}    \end{frame} \end{document} What focal length lens do I need for photographing the moon? I would like to know whether it is possible to photograph moon without any flaws with a canon EOS 550d..   Also to get an image of the moon as close as the following image, what kind of equipment(lens,etc) is need to be used with the 550d Body Keep the same field headers after joining a table to a shapefile in QGIS I noticed that after joining a table to a shapefile the headers of each fields in the table used for the join are changed by QGIS and they are attributed to a different name.  For instance, I had a shapefile with vegetation_codes and a table with vegetation_codes and veg_definition (these were the headers). After joining the table to the shapefile and also saving the shapefile and creating a new one, the vegetation_classes header was changed into vegetati_1.  Is there a way to keep the original headers?  I am using QGIS Dufour on Windows 7 and the table that I join to the shapefile is CSV (tried with dbf as well and the problem is the same). How do I create a Java string from the contents of a file? I've been using the idiom below for some time now. And it seems to be the most wide-spread, at least on the sites I've visited.  Is there a better/different way to read a file into a string in Java?  private String readFile(String file) throws IOException {     BufferedReader reader = new BufferedReader(new FileReader (file));     String         line = null;     StringBuilder  stringBuilder = new StringBuilder();     String         ls = System.getProperty("line.separator");      try {         while((line = reader.readLine()) != null) {             stringBuilder.append(line);             stringBuilder.append(ls);         }          return stringBuilder.toString();     } finally {         reader.close();     } } My Déjà Dup backups have become quiet large and I noticed they contain a huge number of unnecessary files (e.g. *.pyc files, **__pycache__ folders and other build related temporary stuff).   I know that I can ignore specific folders, but is there a way to exclude files and or folders by patterns?  I thought there might be more options usable trough a configuration file, but Déjà Dup doesn't use one. So I looked at duplicity (the CLI it is based on), but the man page doesn't mention a configuration file either. I know that duplicity can ignore files and folders based on patterns (--exclude, --exclude-filelist), but I have no idea how to combine this with Déjà Dup.  Do I have to ditch Déjà Dup and use duplicity manually? Or is there a way to set the needed options, so that they are used automatically, when duplicity is used by Déjà Dup? I am an Indian citizen residing in the United States. My wife and I are planning to travel to the UK for a week. We plan to apply for the UK standard visitor visa from the US. I was filling out the application and I have a few questions.   Travel History - The application asks for travel history to the United States, Canada, Australia and New Zealand. Considering that we're resident aliens in the United States, should we consider all the times we've traveled back to the US from India? Travel History - Should we also list out the times we've traveled to India from the US? Cost of the trip - Hypothetically if we plan to spend a total of ~4,000 USD on this trip, should I split up the cost and write down 2,000 USD on my application and 2,000 USD on my wife's application? Income - From what I've read on the forum, my wife must say that "someone else" i.e. me - is paying for her costs and mention my GWF number in the remarks on her application. Would that be sufficient considering that I'll be sending all income documents with my application? Savings - We have joint savings accounts. Should I mention the same amount on both our applications? Posting the documents - Is the up-to-date advice to send all documents in one packet? Or would sending them in separate packets at the same time be better? My thought was to annotate my wife's packet with my GWF number if we were to send them separately. Bank statements - We get e-statements. Would printing those out be enough? Difference between int[] array and int array[] How do I change NEI to cheat mode? When I heard that you could look up recipes and cheat items with Not Enough Items, I downloaded NEI. It worked, and then I got another mod and the all of a sudden NEI still worked, but it was locked in recipe mode only. I tried fixing it by putting it into cheat mode again, but it was still in recipe mode.  I knew the only reason this happened was probably because of a change in the mod. Then I was watching a YouTuber who had the same exact mod as me and NEI was working and not locked in recipe mode for him. I tried redownloading NEI and getting it again but I was still stuck in recipe mode.  How do I get NEI in cheat mode? How to show that $\lim_{n \to +\infty} n^{\frac{1}{n}} = 1$?