Reef Chemistry and pH

Reef Chemistry and pHWhen it comes to reef chemistry and pH, most people think that the two things are different. Reef chemistry is certainly a bit different than the one found in the human body and just about any other environment out there in the great out-there.Reef chemistry is actually the combination of various chemicals in the water. It's the little bacteria and algae (most often we don't notice) in the water that help to keep things balanced. As you might imagine, the more of these there are, the less alkaline. The more acidic, the more they are.When you're doing something with chemicals and pH levels, a good example would be the stuff they use in fertilizer. Sometimes called 'alkalinity,' that's the name applied to the pH level of the fertilizer being used. A fertilizer of very high alkalinity would tend to make the water very much more acidic than what it already is.It's important to remember that the ideal conditions for reef chemistry and pH are those that are highly alka line. This is because it makes the materials inside the rock work harder. In the natural environment, many things will need to work harder to get the process going, so high alkalinity is definitely needed.It can be surprising how much difference this one simple change can make in the environment. As an example, if you went into a very dry desert and tried to plant a nice garden, you might do OK for a while, but as the plants grew in, it would dry out, and the nutrients you were feeding them wouldn't be as effective. It might be easier, however, to add a source of high alkalinity to the garden in order to make it grow faster. And you might find that the lack of water running through it allowed you to grow food that wouldn't dry out as much.To understand why there's a difference between reef chemistry and pH, it helps to go back to what is usually called pH. pH is actually just the acid and base information in the same way that alkalinity is. So if you add a lot of alkalinity, say ove r ten percent, it should make the water even more acidic, especially with things like fertilizers and water softeners.When it comes to reef chemistry and pH, the best thing to do is to think of it as the work of the symbiotic bacteria and algae. They make the ocean (as well as things we see in the living world), and you can do the same with your reef aquarium.

Factoring Trinomials

Factoring Trinomials Factoring trinomials - Factors of trinomial expressions when the coefficient of the highest power is not unity. Example 1.Resolve into factors 7 x2 - 19x 6. First trial, write down (7x 3) (x 2) noticing that 3 and 2 must have opposite signs. These factors give 7 x2, and 6 for the first and third terms but since 7 X 2 3 X 1 = 11, the combination fails to give the correct coefficient of the middle term. Next try, (7x, 2) (x, 3). Since 7 X 3 2 X 1 = 19 these factors will be correct. If we insert the signs so that the negative shall become predominate. Thus 7 x2 - 19x 6 = 7 x2 21x + 2x 6 = 7x (x 3) + 2 (x 3) = (x 3) (7x + 2) Example 2. Resolve into factors x2 3 x - 54. In the given equation the third term is negative. The second terms of the factors must be such that their product us 54 and their algebraic sum - 3. Hence they must have opposite signs, and the greater of them must be negative in order to give its sign to their sum x2 - 3x 54 = x2 - 9x + 6x 54 Or = x (x - 9) + 6 (x - 9) = x2 - 3x 54 = (x - 9) (x + 6) Example 3. Resolve into factors x2 - 10x + 24. The second term of the factors must be such that their product is + 24 and their sum -10, it is clear that they must be - 6 and - 4. x2 - 10x + 24 = x2 - 6 x - 4 x + 24 = x (x - 6) - 4 (x - 6) Or x2 - 10x + 24 = (x - 6) (x - 4)

The Utility Value of Time as Enforced by Online Tutoring

The Utility Value of Time as Enforced by Online Tutoring 0SHARESShare Time is the most precious thing in the world and it is said that every second in the world counts, since you can do some good thing with that second. Hence proper investment of time makes you reach out to great many things in life- This you find true in online tutoring methods. How tutoring online saves time for you? First of all, there is no commutation to steal your time from you. You can concentrate more on your studies  in comfortable home environment Next, there is no waste of time in searching out the materials for your assignments and projects. This proves good with Science online tutoring, where you get much help in sourcing out topics for thesis, project, research and assignments Clear cult learning methods are prescribed to improve your studies. You know what to do and how to do. you need not waste time over making plans about your study methods With proficient spoken skills by virtue of English online tutoring, you are able to speak out your future plans and career prospects at the very start of your student life to move forward in the same line. You leave no room for empty words and achieve what you wish in the expected span  of time Tutor Pace. Com makes student life worthy by providing methods and means that help students invest their time usefully to gain much in future. [starbox id=admin]

How To Crack AP Calculus Problems And Score Top Marks

How To Crack AP Calculus Problems And Score Top Marks AP exams are always exacting and papers like calculus and physics are especially challenging and students have to give these exams extra time and effort to succeed. If you are preparing for your AP calculus exams, here are a few tips to help you ace the exams and score top marks; read on to learn more! 1) Write down all the steps clearly You will be graded on how you arrive at the solution for calculus and the person grading your paper would very much like to see and gauge your thought process. When you write down the steps, you are showcasing your know-how of the area that the problem focuses on. Most teachers and online math tutors recommend that you work out in detail and present your solution to the problem to score top marks in the paper. How To Prepare For Your #Math Final #Exam Without Losing Your Sleep http://t.co/DjJbnRge9D pic.twitter.com/lJk9MkY9LA â€" Tutor Pace (@TutorPace) September 16, 2015 2) If you don’t know to complete a calculus problem, don’t skip attempting it Partial credits are awarded to problems that are left unsolved. Try your best to solve the problem (keeping time in mind of course!) and write down your working of it to earn partial credit. This will help in improving your grades. 3) Even if you are using a calculator, write things down Writing down equations and intermediate steps are important for full credit. Remember this during exams. One useful way to practise this is while doing your homework. If you write down every step in detail while solving a problem in calculus, it could turn out to be the best math homework help and also enable you to score higher in your AP exams! 4) Knowing when to round off answer is important Always wait until the final step to round off while solving problems. Since you will be working with a calculator, you will have the capability to store decimals and round them off at the last step. Do this to ensure full credit. Top 5 Reasons Why An Online #Math Tutor Is Your Key To Scoring Straight A http://t.co/yaYmGfur3B pic.twitter.com/LrofyWHJCT â€" Tutor Pace (@TutorPace) September 15, 2015 5) Read the question twice to see if you have answered what has been asked Sometimes, you may have solved for something and stopped right there considering it to be the answer while the question may expect you to delve further and arrive at something else. It is wise to read the question more than once understand what it is that you have to find out and then work on the problem. 6) Incorrect answers don’t attract minus points, use this to your advantage Since 2011, incorrect answers don’t draw a penalty and you could use this to your advantage. Know when to guess and if you run out of time, guess intelligently. You would need to practise timed tests before hand to become good at guessing and eliminating wrong choices. Make sure that you integrate this into your study routine. 8 #Videos That Prove #Math Is Awesome http://t.co/ctmhsmzZ7o pic.twitter.com/A3986sfavR â€" Tutor Pace (@TutorPace) August 17, 2015 7) Some questions test your understanding, learn how to deal with calculus problems If you are asked to justify your answer, you should learn to showcase your understanding and demonstrate that you understand the concept well. While working out assignments and homework problems, ensure that you write down all the pertinent steps. For example, in case you are working on say the point of inflection, demonstrating that you do understand that a sign change must occur for the second derivative will help you justify the case in point. Practising all these while working out assignments could prove to be very beneficial and can turn out to be the best math assignment help there is! Summary Cracking AP calculus is easy and very much possible if you are diligent and meticulous in your preparation. The above tips are sure to help you earn full credit for the problems you do work out on the paper and will help you with your preparation for the AP exams.

Want to Learn Spanish 5 Options Broken Down By Cost

Want to Learn Spanish 5 Options Broken Down By Cost Suzy S. You probably already know the benefits of learning Spanish, from getting ahead in the job market to networking with new friends and more! But as with any skill, language mastery takes time and often money to achieve. If youre wondering how much it costs to learn Spanish, there isnt one hard-set answer it really depends on how youre going about your learning.  These days, the Internet makes it easy to find resources to even teach yourself Spanish, without needing a ton of expensive books or software. If youre on-the-go, free Spanish-learning apps can be a fun way to fit learning into your day. And when youre ready to get serious about your studies, the advent of online lesson platforms  makes finding a tutor within your budget easier than ever. So, whats the right option for you and your budget? Continue reading to learn  about five popular options to help you teach yourself Spanish. Software The modern version of a workbook is language learning software. While there are many available out there, the most well-known option is Rosetta Stone. Language software is a great option if you want to set your schedule sitting down whenever you have  some spare time however, the biggest drawback is the lack of personal attention. You wont be able to double check of your pronunciation with the software, so youll need to rely on your own ear to determine whether youre getting the syntax and pronunciation correct. This kind of software can cost you from $30 for a budget option up to a few hundred dollars for a comprehensive study of Spanish. Example  option: Rosetta Stone costs$499 for a 36-month beginner program. Books This language-learning option was  around well before computers, the Internet, or smartphones. A well-crafted book will allow  you to learn a language without purchasing multiple resources and building a considerable expense, and similar to software, you can go at  your own pace. Keep in mind, though, that  books share the same drawbacks as software as well. Most books will have quizzes or tests at the end of each chapter, but its difficult to really gauge your progress outside of that.  On top of this, you wont have the audio that software provides   typically just a  phonetic spelling that youll need to decipher. Books can be as inexpensive as $5 secondhand, or over $100 for a textbook. Example option:  Easy Spanish Step-By-Step  is a top seller on Amazon, and the paperback version can cost less than $8. Mobile Apps Nowadays, theres an app for everything including tons of apps  for learning Spanish. Language-learning apps are quite similar to software, but they are obviously much more portable. Its an easy option for quick study during your commute, on your breaks, or anywhere else that you bring your smartphone or tablet. In addition to being portable, many of these apps are free. On the drawback side, however keep in mind that these apps typically set your path for you and assume your goals. Because of this, you might get stuck at a certain level, even if what you  really want (or need) to learn is introduced much later on. Mobile apps may  be free and ad-supported, or require a monthly subscription of $5 up to $40 or even more. Example option: Download TakeLessons Live for free to access live, online classes in a variety of languages. Online  Learning Websites Dont want to install software or download an app? Another learning method comes in the form of websites or tutorial videos. It shares the same drawbacks as apps and software, in that theyre not targeted to your specific goals.  While there are certainly some great sites out there, theres also a handful of not-so-great options ones that rely on memorization and  repetition, instead of real-life scenarios for learning. Online resources can also be free and ad-supported, or require a monthly subscription of $10 to $50 or more. Example options:  Check out LearnWithOliver, or our other recommendations for Spanish-learning websites for adults, or  free Spanish-learning websites for kids. Tutoring Whether you seek an online tutor that you meet over video chat, or an in-person tutor that you meet with regularly, tutors are easily the most bang-for-your-buck. You have complete control over the pace of your learning (your tutor will monitor progress and only proceed when you have mastered the current Spanish segment), instantaneous feedback on pronunciation errors, and the ability to ask questions about anything that youre having trouble with. As  youre weighing options and considering  how much a tutor will cost, its important to realize how much more youre getting for the expense. Tutors with TakeLessons set their own rates, which gives you a wide variety of options. You can typically find tutors for as little as $15 per hour  up to  $100 per hour, depending on experience. Example option: A native Spanish speaker and TakeLessons Student Favorite, Georgina L. teaches beginners, intermediate, and  advanced students at  $30 per hour. So there you have it several options for learning Spanish, all at your fingertips! Best of luck with your studies, and let us know if you need any help getting started.  Going the tutoring route? Find Spanish tutors in your area and compare prices with a search here at TakeLessons! Photos by Devon DEwart,  LexnGer,  Tom Raftery,  S Martin,  Jeremy Wilburn Interested in Private Lessons? Search thousands of teachers for local and live, online lessons. Sign up for convenient, affordable private lessons today! Search for Your Teacher

Learning French 5 Ways a Tutor Can Help

Learning French 5 Ways a Tutor Can Help Suzy S. Are you looking for a little help learning French? French tutor  Carol Beth L.  explains how tutoring can help Learning French â€" or any new language â€" can be difficult, especially if you have little time or are not sure how to go about this gargantuan task. Hiring a tutor can help a lot in a number of ways, and can offer support in a variety of situations. Here are a few ways in which a tutor can help: 1) Pacing Suppose you do not have time to take a class and must study French on your own. Many people in this situation have trouble finding a consistent pace for themselves. Their jobs and social lives get in the way, and pretty soon, learning a language has fallen by the wayside. Even if you do not meet with your tutor every day, by meeting with your tutor weekly, they can help you to make goals for the week to keep you on track. If you are taking a class but are having trouble keeping up, your tutor may also be able to help you. 2) Study skills Most of us study a language in middle and high school, yet Americans are notorious worldwide for being monolingual. If you have never truly mastered another foreign language, or if you have but it was as a child absorbing it by osmosis, it may be more difficult to truly master another language as a teenager or adult. Your tutor can guide you with assignments that will help you 3) Speaking, listening, and conversational practice Unless you have roommates, family, friends, or colleagues who speak French well and are willing to speak with or around you on a regular basis, it can be difficult to practice and correct mistakes in your speaking. Recordings and films can help enormously with listening comprehension, accent, and pronunciation, but even this lacks the interactivity and spontaneity of a real-life conversation with someone. Reading and writing are important too, but can be practiced on your own more easily. 4) French-specific learning techniques and games Tutors are there because they know a lot about the language and (hopefully) a lot about how to learn the language. They may have songs, games, or other activities that will make learning French easier and more fun. 5) French resources In addition to the previous advantages listed, your French tutor, with their French-specific knowledge, is likely to know about where to find certain resources you may find useful. This includes French conversation groups, French meet-ups, local French films, French restaurants, French websites, French literature (at your level), French penpals, and more. They wont know everything, but they will probably know things you dont. Even if they dont know, they may have an easier time figuring out where to look. Do any of these sound helpful? If so, you may wish to consider finding a French tutor to help you on your journey to linguistic mastery.   Carol Beth L. teaches  French lessons in San Francisco, CA. She has her Masters in French language education from the Sorbonne University in Paris and has been teaching since 2009.  Learn more about Carol Beth here! Interested in Private Lessons? Search thousands of teachers for local and live, online lessons. Sign up for convenient, affordable private lessons today! Search for Your Teacher Photo by City Year

Trig Identities Problems - Trigonometry Online Tutoring

Trig Identities Problems - Trigonometry Online Tutoring Trigonometric identities are the statements or the equations containing the trigonometric functions, and these functions are put together using different operations. Unlike equations, these trigonometric identities are not solved, but these identities are proved. In order to prove the identities, we have to get to a conclusion that the expression in the left-hand side of the equation is the same as the expression in the right-hand side of the equation. By proving both sides of the equation to be the same, we can conclude that the trigonometric identity is proved! Example 1: Prove the given trigonometric identity: cot()/cosec() = cos(). In order to prove the above given trigonometric identity, we have to first start by picking any side of the equation. Here lets start with the left-hand side of the equation-cot()/cosec() We can also write the above expression as: cot()/cosec() = [cos()/sin()]/ [1/sin()] Now taking the reciprocal we get-[cos()/sin()] * [sin()/1] Now, sin() gets cancelled, and we get -cos() = right-hand side of the equation! Hence proved! Example 2: Prove the given trigonometric identity: sec() * cot() = cosec(). In order to prove the above given trigonometric identity, we have to first start by picking any side of the equation. Here lets start with the left-hand side of the equation -sec() * cot() We can also write the above expression as: sec() * cot() = [1/cos()] * [cos()/sin()] Here the cos() present in the numerator and the denominator gets cancelled and we get -[1/sin()] . This implies: 1/sin() = cosec() = right-hand side of the equation! Hence proved!